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S. Korea in shock, grief as 151 die in Halloween crowd surge

Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Family members listen to reports for their missing loved ones at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022, following a deadly accident that happened during Halloween festivities Saturday night. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A man bows to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon pays tribute for victims at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon speaks at the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Seoul's Mayor Oh Se-hoon, center, visits the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) A parent of a victim of Saturday night's accident following Halloween festivities reacts at a community service center in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) A woman places flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) Flowers are displayed to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) A woman places a bouquet of flowers to pay tribute for victims near the scene of a deadly accident in Seoul, South Korea, Sunday, Oct. 30, 2022, following Saturday night's Halloween festivities. A mass of mostly young people among tens of thousands who gathered to celebrate Halloween in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea’s worst disaster in years. (AP Photo/Ahn Young-joon) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center left, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (Han Sang-gyun/Yonhap via AP) South Korean national flags fly at half-mast at the government complex in Seoul, South Korea, Sunday, Oct. 30, 2022. A mass of mostly young people celebrating Halloween festivities in Seoul became trapped and crushed as the crowd surged into a narrow alley, killing dozens of people and injuring dozens of others in South Korea's worst disaster in years. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, is briefed at the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) South Korean President Yoon Suk Yeol, center, visits the scene where dozens of people died and were injured in Seoul, South Korea, Sunday, Oct. 30, 2022, after a mass of mostly young people celebrating Halloween festivities became trapped and crushed as the crowd surged into a narrow alley. (AP Photo/Lee Jin-man) Rescue workers carry a victim on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. Scores of people were killed and others were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers carry a victim on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. Scores of people were killed and others were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers wait to carry victims on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. Scores of people were killed and others were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers carry a victim on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. Scores of people were killed and others were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers, firefighters and police officers are seen on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. Scores of people were killed and others were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers treat injured people on the street in Seoul, South Korea, Sunday, Oct. 30, 2022. People were killed and injured after being crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers carry injured people on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. South Korean officials say at least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul. Choi Seong-beom, chief of Seoul’s Yongsan fire department, said the death toll could rise, saying that an unspecified number among the injured were in critical conditions. (AP Photo/Lee Jin-man) Rescue workers treat injured people on the street near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. South Korean officials say at least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul. Choi Seong-beom, chief of Seoul’s Yongsan fire department, said the death toll could rise, saying that an unspecified number among the injured were in critical conditions. (AP Photo/Lee Jin-man) Rescue workers try to carry victims on the street near the scene, in Seoul, South Korea, Sunday, Oct. 30, 2022. South Korean officials say at least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul. Choi Seong-beom, chief of Seoul’s Yongsan fire department, said the death toll could rise, saying that an unspecified number among the injured were in critical conditions. (AP Photo/Lee Jin-man) Ambulances and rescue workers arrive near the scene of an incident, in Seoul, South Korea, Sunday, Oct. 30, 2022. South Korean officials say at least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul. Choi Seong-beom, chief of Seoul’s Yongsan fire department, said the death toll could rise, saying that an unspecified number among the injured were in critical conditions. (AP Photo/Lee Jin-man) Rescue workers carry an injured person to the hospital in Seoul, South Korea, Sunday, Oct. 30, 2022. At least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul, South Korean officials said. (See Dae-yeon/Yonhap via AP) Ambulances and rescue workers gather near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. At least 120 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul, South Korean officials said. (AP Photo/Lee Jin-man) Rescue workers and firefighters try to help injured people near the scene of a crowd surge in Seoul, South Korea, Sunday, Oct. 30, 2022. At least 146 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul officials said. (AP Photo/Lee Jin-man) Ambulances carrying victims head to the hospital near the scene in Seoul, South Korea, Sunday, Oct. 30, 2022. At least 146 people were killed and 100 more were injured as they were crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital of Seoul, South Korean officials said. (AP Photo/Lee Jin-man) Injuried people are helped at the street near the scene in Seoul, South Korea, early Sunday, Oct. 30, 2022. South Korean officials said around 50 people were in cardiac arrest and a number feared dead after being crushed by a large crowd pushing forward on a narrow street during Halloween festivities in the capital Seoul. (AP Photo/Lee Jin-man)