A bomb squad detonated a suspicious device Saturday afternoon at a parking lot in front of a Safeway in Central Phoenix.
The lot near 7th Avenue and Osborn was roped-off and shoppers were being re-routed.
KTAR's Lou Romano spoke with store employees who said it was "business as usual" inside the store, but the lot was full of police cars and fire trucks.
Authorities are looking for suspects.
KTAR's Lou Romano contributed to this story