MINNEAPOLIS -- A chemical explosion in Minneapolis Thursday morning injured three people, one critically.
The explosion happened just before 8 a.m. at Interplastic Corporation at 2015 Broadway St. NE.
Workers were replacing the cap on an external tank, said Assistant Fire Chief Cherie Penn.
"At that time, there was some kind-of flash explosion," she said.
One worker was critically injured, another was seriously injured, Penn said. Both had second- and third-degree chemical burns and were taken to Hennepin County Medical Center.
The third worker received minor injuries.
The tank, which holds an acid-based product, was only a quarter full, Penn said, so it did not leak any chemical materials.
"The product is still in the tank," Penn said. "So there is no danger to the public."
Hazmat crews and the Minneapolis Fire Department remained on the scene Thursday morning, waiting for the chemical to cool down and solidify.
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