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Relentless attacks pound last defenders holed up in Mariupol

Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man watches as a car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) FILE - This satellite image provided by Maxar Technologies on Thursday, April 21, 2022 shows an overview of the cemetery in Manhush, some 20 kilometers west of Mariupol, Ukraine, on April 3, 2022. The graves are aligned in four sections of linear rows (measuring approximately 85 meters per section) and contain more than 200 graves. (Satellite image ©2022 Maxar Technologies via AP) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man watches as a car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) FILE - This satellite image provided by Maxar Technologies on Thursday, April 21, 2022 shows an overview of the cemetery in Manhush, some 20 kilometers west of Mariupol, Ukraine, on April 3, 2022. The graves are aligned in four sections of linear rows (measuring approximately 85 meters per section) and contain more than 200 graves. (Satellite image ©2022 Maxar Technologies via AP) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man watches as a car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man watches as a car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Ukrainian soldiers collect multiple Russian 'Uragan' missiles after recent fights in the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Rostilav, 4, left, smiles to the camera as he arrives with his family and friend Yaroslav, from Mariupol, at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A woman from Mariupol cries as she arrives at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, gestures after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A soldier of the Azov battalion walks inside the regional administration building that was heavily damaged after a Russian attack last month, in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian soldiers examine Russian multiple missiles abandoned by Russian troops when they retreated after recent fights in the village of Berezivka, Ukraine, Thursday, Apr. 21, 2022. (AP Photo/Efrem Lukatsky) A man walks next a storage place for burned vehicles in Irpin, on the outskirts of Kyiv, Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A man rides his bicycle next to a destroyed Russian tank in Chernihiv, Ukraine, on Thursday, April 21, 2022. (AP Photo/Emilio Morenatti) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A man rides his bicycle next to a destroyed Russian tank in Chernihiv, Ukraine, on Thursday, April 21, 2022. (AP Photo/Emilio Morenatti) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A man rides his bicycle next to a destroyed Russian tank in Chernihiv, Ukraine, on Thursday, April 21, 2022. (AP Photo/Emilio Morenatti) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) This satellite photo released by Planet Labs and taken on April 20, 2022 shows the Azovstal Steel Plant in Mariupol, Ukraine, with some large holes blasted in the roof. (Planet Labs via AP) A man rides his bicycle next to a destroyed Russian tank in Chernihiv, Ukraine, on Thursday, April 21, 2022. (AP Photo/Emilio Morenatti) Valentina Greenchuck, 73, holds a plastic bag containing an orthodox icon after arriving from Mariupol at a refugee center in Zaporizhzhia, Ukraine, Thursday, April 21, 2022, after fleeing from the Russian attacks. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) Internally displaced people from Mariupol and nearby towns arrive at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) A Ukrainian soldier stands as sappers search for mines left by the Russian troops in the fields at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A woman looks out of a building damaged by Russian shelling last month, in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Ukrainian sappers detonate a 250-kilogram Russian air bomb in the fields of the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) Ukrainian soldiers holds a fragment of a Russian multiple missile 'Uragan' after recent fights at the village of Berezivka, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) An internally displaced elderly woman from Mariupol looks out of a bus after window arriving at a refugee center fleeing from the Russian attacks, in Zaporizhzhia, Ukraine, Thursday, April 21, 2022. Mariupol, which is part of the industrial region in eastern Ukraine known as the Donbas, has been a key Russian objective since the Feb. 24 invasion began. (AP Photo/Leo Correa) This satellite photo released by Planet Labs and taken on April 20, 2022 shows the Azovstal Steel Plant in Mariupol, Ukraine, with some large holes blasted in the roof. (Planet Labs via AP) A man rides his bicycle next to a destroyed Russian tank in Chernihiv, Ukraine, on Thursday, April 21, 2022. (AP Photo/Emilio Morenatti) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Russian Paramarchuk, 45, sits on a chair next to a makeshift fire outside his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this image provided by the Ukrainian Presidential Press Office, Spanish Prime Minister Pedro Sanchez, walks with Denmark's Prime Minister Mette Frederiksen to their meeting with Ukrainian President Volodymyr Zelenskyy in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines Russian multiple missiles abandoned by Russian troops in the village of Berezivka, Ukraine, Thursday, April 21, 2022. Writing on missiles reads "Russian republic of Buryatiya, Kyakhta". (AP Photo/Efrem Lukatsky) Ukrainian President Volodymyr Zelenskyy, on the video screen, addresses the Portuguese parliament in Lisbon, Thursday, April 21, 2022. Top right is Speaker of Parliament Augusto Santos Silva and 2nd right Portuguese President Marcelo Rebelo de Sousa. At bottom, 2nd right, is Portuguese Prime Minister Antonio Costa. (AP Photo/Armando Franca) A firefighter opens the door of a burning apartment after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next to a fire after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Russian Paramarchuk, 45, sits on a chair next to a makeshift fire outside his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this image provided by the Ukrainian Presidential Press Office, Spanish Prime Minister Pedro Sanchez, walks with Denmark's Prime Minister Mette Frederiksen to their meeting with Ukrainian President Volodymyr Zelenskyy in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines Russian multiple missiles abandoned by Russian troops in the village of Berezivka, Ukraine, Thursday, April 21, 2022. Writing on missiles reads "Russian republic of Buryatiya, Kyakhta". (AP Photo/Efrem Lukatsky) Ukrainian President Volodymyr Zelenskyy, on the video screen, addresses the Portuguese parliament in Lisbon, Thursday, April 21, 2022. Top right is Speaker of Parliament Augusto Santos Silva and 2nd right Portuguese President Marcelo Rebelo de Sousa. At bottom, 2nd right, is Portuguese Prime Minister Antonio Costa. (AP Photo/Armando Franca) A firefighter opens the door of a burning apartment after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next to a fire after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Russian Paramarchuk, 45, sits on a chair next to a makeshift fire outside his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this image provided by the Ukrainian Presidential Press Office, Spanish Prime Minister Pedro Sanchez, walks with Denmark's Prime Minister Mette Frederiksen to their meeting with Ukrainian President Volodymyr Zelenskyy in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines Russian multiple missiles abandoned by Russian troops in the village of Berezivka, Ukraine, Thursday, April 21, 2022. Writing on missiles reads "Russian republic of Buryatiya, Kyakhta". (AP Photo/Efrem Lukatsky) Ukrainian President Volodymyr Zelenskyy, on the video screen, addresses the Portuguese parliament in Lisbon, Thursday, April 21, 2022. Top right is Speaker of Parliament Augusto Santos Silva and 2nd right Portuguese President Marcelo Rebelo de Sousa. At bottom, 2nd right, is Portuguese Prime Minister Antonio Costa. (AP Photo/Armando Franca) A firefighter opens the door of a burning apartment after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next to a fire after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Russian Paramarchuk, 45, sits on a chair next to a makeshift fire outside his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) Russian Paramarchuk, 45, sits on a chair next to a makeshift fire outside his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this image provided by the Ukrainian Presidential Press Office, Spanish Prime Minister Pedro Sanchez, walks with Denmark's Prime Minister Mette Frederiksen to their meeting with Ukrainian President Volodymyr Zelenskyy in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) In this image provided by the Ukrainian Presidential Press Office, Spanish Prime Minister Pedro Sanchez, walks with Denmark's Prime Minister Mette Frederiksen to their meeting with Ukrainian President Volodymyr Zelenskyy in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A car burns with two people inside, after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian sapper prepares to detonate a Russian 250-kilogram air bomb in the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022. (AP Photo/Efrem Lukatsky) A Ukrainian soldier examines Russian multiple missiles abandoned by Russian troops in the village of Berezivka, Ukraine, Thursday, April 21, 2022. Writing on missiles reads "Russian republic of Buryatiya, Kyakhta". (AP Photo/Efrem Lukatsky) Ukrainian President Volodymyr Zelenskyy, on the video screen, addresses the Portuguese parliament in Lisbon, Thursday, April 21, 2022. Top right is Speaker of Parliament Augusto Santos Silva and 2nd right Portuguese President Marcelo Rebelo de Sousa. At bottom, 2nd right, is Portuguese Prime Minister Antonio Costa. (AP Photo/Armando Franca) Ukrainian President Volodymyr Zelenskyy, on the video screen, addresses the Portuguese parliament in Lisbon, Thursday, April 21, 2022. Top right is Speaker of Parliament Augusto Santos Silva and 2nd right Portuguese President Marcelo Rebelo de Sousa. At bottom, 2nd right, is Portuguese Prime Minister Antonio Costa. (AP Photo/Armando Franca) A firefighter opens the door of a burning apartment after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A firefighter opens the door of a burning apartment after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) A man walks next to a fire after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) Firefighters battle a fire at a warehouse after a Russian bombardment in Kharkiv, Ukraine, Thursday, April 21, 2022. (AP Photo/Felipe Dana) In this photo provided by the Spanish government, Spain's Prime Minister Pedro Sanchez walks past a burned military vehicle as he visits the city of Borodyanka, Ukraine, Thursday, April 21, 2022. Spain's Prime Minister Pedro Sanchez said he was "shocked to witness the horror and atrocities of Putin's war on the streets of Borodyanka," a town in northern Ukraine that has been devasted by the invasion. (Spanish Government via AP) In this image provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy, left, Denmark's Prime Minister Mette Frederiksen, second left, and Spanish Prime Minister Pedro Sanchez, center, walk up steps during their meeting in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this photo released by the Russian Presidential Press Service, Russian President Vladimir Putin, left, and Russian Defense Minister Sergei Shoigu look at each other during their meeting in the Kremlin in Moscow, Russia, Thursday, April 21, 2022. (Russian Presidential Press Service via AP) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) In this image provided by the Ukrainian Presidential Press Office, Denmark's Prime Minister Mette Frederiksen, center, looks on as Ukrainian President Volodymyr Zelenskyy, left, and Spanish Prime Minister Pedro Sanchez, shake hands during their meeting in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) In this photo provided by the Spanish government, Spain's Prime Minister Pedro Sanchez walks past a burned military vehicle as he visits the city of Borodyanka, Ukraine, Thursday, April 21, 2022. Spain's Prime Minister Pedro Sanchez said he was "shocked to witness the horror and atrocities of Putin's war on the streets of Borodyanka," a town in northern Ukraine that has been devasted by the invasion. (Spanish Government via AP) In this image provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy, left, Denmark's Prime Minister Mette Frederiksen, second left, and Spanish Prime Minister Pedro Sanchez, center, walk up steps during their meeting in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) Alla Prohonenko, 53, touches a photo of her father Volodymyr Prohonenko during his funeral in Irpin, cemetery on the outskirts of Kyiv, on Thursday, April 21, 2022. Proponenko died during the Russian occupation. (AP Photo/Petros Giannakouris) A dog walks on a destroyed bridge in Irpin, on the outskirts of Kyiv on Thursday, April 21, 2022. (AP Photo/Petros Giannakouris) Oleksandr Yatsenko, 32, carries a broken window from his house destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Thursday, April 21, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Petros Giannakouris) In this photo released by the Russian Presidential Press Service, Russian President Vladimir Putin, left, and Russian Defense Minister Sergei Shoigu look at each other during their meeting in the Kremlin in Moscow, Russia, Thursday, April 21, 2022. (Russian Presidential Press Service via AP) A Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a recent battle at the village of Kolonshchyna, Ukraine, Thursday, April 21, 2022.(AP Photo/Efrem Lukatsky) In this image provided by the Ukrainian Presidential Press Office, Denmark's Prime Minister Mette Frederiksen, center, looks on as Ukrainian President Volodymyr Zelenskyy, left, and Spanish Prime Minister Pedro Sanchez, shake hands during their meeting in Kyiv, Ukraine, Thursday, April 21, 2022. (Ukrainian Presidential Press Office via AP) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) A child who fled the war from neighboring Ukraine paints an Easter egg in the colors of the Ukrainian flag during an event for Ukrainian refugee children on Maundy Thursday in a center for refugees in Bucharest, Romania, Thursday, April 21, 2022. Orthodox worshipers, which form the majority of Romanians, celebrate Easter Sunday, April 24. (AP Photo/Andreea Alexandru) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - An armed serviceman of Donetsk People's Republic militia walks past a building damaged during fighting in Mariupol, on the territory which is now under the Government of the Donetsk People's Republic control, eastern in Mariupol, Ukraine, Wednesday, April 13, 2022. (AP Photo/Alexei Alexandrov, File) A child who fled the war from neighboring Ukraine paints an Easter egg in the colors of the Ukrainian flag during an event for Ukrainian refugee children on Maundy Thursday in a center for refugees in Bucharest, Romania, Thursday, April 21, 2022. Orthodox worshipers, which form the majority of Romanians, celebrate Easter Sunday, April 24. (AP Photo/Andreea Alexandru) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - An armed serviceman of Donetsk People's Republic militia walks past a building damaged during fighting in Mariupol, on the territory which is now under the Government of the Donetsk People's Republic control, eastern in Mariupol, Ukraine, Wednesday, April 13, 2022. (AP Photo/Alexei Alexandrov, File) A child who fled the war from neighboring Ukraine paints an Easter egg in the colors of the Ukrainian flag during an event for Ukrainian refugee children on Maundy Thursday in a center for refugees in Bucharest, Romania, Thursday, April 21, 2022. Orthodox worshipers, which form the majority of Romanians, celebrate Easter Sunday, April 24. (AP Photo/Andreea Alexandru) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - An armed serviceman of Donetsk People's Republic militia walks past a building damaged during fighting in Mariupol, on the territory which is now under the Government of the Donetsk People's Republic control, eastern in Mariupol, Ukraine, Wednesday, April 13, 2022. (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - An armed serviceman of Donetsk People's Republic militia walks past a building damaged during fighting in Mariupol, on the territory which is now under the Government of the Donetsk People's Republic control, eastern in Mariupol, Ukraine, Wednesday, April 13, 2022. (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - A metallurgical plant is seen on the outskirts of the city of Mariupol, Ukraine, Thursday, Feb. 24, 2022. Russia began evacuating its embassy in Kyiv, and Ukraine urged its citizens to leave Russia. Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it "so that not even a fly comes through." Defense Minister Sergei Shoigu told Putin on Thursday that the sprawling Azovstal steel plant where Ukrainian forces were holed up was "securely blocked." (AP Photo/Sergei Grits, File) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Children draw as they stand in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) FILE - Damaged Ukrainian army military vehicles with a Ukrainian national flag, are seen at the partly destroyed Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - A Ukrainian national flag, military helmet and medical documents are seen on a table at a destroyed part of the Illich Iron & Steel Works Metallurgical Plant, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022 Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) FILE - Servicemen of the Donetsk People's Republic militia look at bodies of Ukrainian soldiers placed in plastic bags in a tunnel, part of the Illich Iron & Steel Works Metallurgical Plant, the second largest metallurgical enterprise in Ukraine, in an area controlled by Russian-backed separatist forces in Mariupol, Ukraine, Monday, April 18, 2022. On Thursday, April 21, 2022, Russian President Vladimir Putin ordered his forces not to storm the last remaining Ukrainian stronghold in the besieged city of Mariupol but to block it “so that not even a fly comes through.” (AP Photo/Alexei Alexandrov, File) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Local civilians line up to get a hot meals distributing by Donetsk People Republic Emergency Situations Ministry in an area controlled by Russian-backed separatist forces in Bezimenne village, eastern Ukraine, Wednesday, April 20, 2022. (AP Photo/Alexei Alexandrov) Nikolay Godin, 65, who left his home in Severodonetsk due to the Russian attacks, sits at the top bunk settled in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) Ukrainian President Volodymyr Zelenskyy, right, and European Council President, Charles Michel attend a news conference after their meeting in Kyiv, Ukraine, Wednesday, April 20, 2022. (AP Photo/Efrem Lukatsky) Volodymyr Lukyanovych, 63, cooks his dinner outside his house after his building was destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Wednesday, April 20, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Emilio Morenatti) Volodymyr Lukyanovych, 63, cooks his dinner outside his house since his building was destroyed by Russian shelling in Irpin, on the outskirts of Kyiv, on Wednesday, April 20, 2022. Citizens of Irpin are still without electricity, water and gas after since the Russian invasion began. (AP Photo/Emilio Morenatti) Vladimir, 64, who left his home in Severodonetsk due to the Russian attacks, serves his lunch prepared by volunteers in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) A woman adjusts the jacket of a child as they stand between bunk beds settled in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) Vova, 10, looks at the body of his mother, Maryna, lying in a coffin as his father, Ivan Drahun, prays during her funeral in Bucha, on the outskirts of Kyiv, Ukraine, on Wednesday, April 20, 2022. Vova's mother died while they sheltered in a cold basement for more than a month during the Russian military's occupation. (AP Photo/Emilio Morenatti) The bodies of four people who died during the Russian occupation await burial during funerals in Bucha, on the outskirts of Kyiv, Wednesday, April 20, 2022. (AP Photo/Emilio Morenatti) Alexandra Kusminova pets her cat, named Mouse, as she sits on a bed settled in a restaurant that was transformed into a shelter for those who are fleeing the war from the eastern region of the country in Dnipro, Ukraine, Wednesday, April 20, 2022. "We pray every day for everything to be fine, so many people and children have died. For what? Why this war? ", asks the 61-year-old woman, who left her home with her daughter and granddaughter, fleeing the Russian attacks in Avdiivka. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) Displaced people have lunch cooked by volunteers, at a restaurant that was transformed into a shelter for those who are fleeing the war from eastern region of the country, in Dnipro, Ukraine, Wednesday, April 20, 2022. The U.N. refugee agency says more than 5 million refugees have fled Ukraine since Russian troops invaded the country. The agency announced the milestone in Europe's biggest refugee crisis since World War II on Wednesday, April 20, 2022. (AP Photo/Leo Correa) Vova, 10, looks at the coffin carrying body of his mother, Maryna, as his father, Ivan Drahun, hugs him during her funeral in Bucha, on the outskirts of Kyiv, on Wednesday, April 20, 2022. Vova's mother died while they sheltered in a cold basement for more than a month during the Russian military's occupation. (AP Photo/Emilio Morenatti) In this image provided by the European Council, European Council President Charles Michel, center, looks at destroyed vehicles as he is given a tour of the region of Borodyanka, Ukraine, Wednesday, April 20, 2022. (Dario Pignatelli/European Council via AP)