HARRISBURG, Pa. (AP) — Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel ...

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

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

The company said pressure likely built up inside the valve, causing it to fail and leading to coke oven gas filling the area, ...

The deadly blast at the U.S. Steel facility outside Pittsburgh was just the latest in a series of recent workplace accidents.

Flushing of a gas valve made during maintenance preparation may have led to the deadly explosion at the U.S. Steel Clairton ...

Allegheny County is boosting air monitoring after a deadly explosion at U.S. Steel’s Clairton Coke Works, a plant with a ...

Family members tell Pittsburgh's Action News 4 Steven Menefee, a father of two, was a loving man who would give you the shirt ...