A number of people had been injured following a large explosion on the US Metal Clairton Coke Works plant on Monday morning, prompting emergency crews to declare a mass casualty incident. The reason for the blast stays unclear.
BREAKING: Mass casualty incident declared as EMS assets reply to explosion at U.S. Metal Clairton Coke Works in Pennsylvania. – WPXI-TV Pittsburgh
Video: Ava Rash/WTAE pic.twitter.com/pTCCAy7x3x
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