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Preliminary findings from U.S. Steel suggest what may have caused deadly Clairton Coke Works explosion

U.S. Steel released preliminary findings about the potential cause of Monday's deadly explosion at U.S. Steel Clairton Coke ...

Explosion at US Steel Clairton Coke Works plant happened while crews were flushing gas valve

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant that ...