U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing ...

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

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

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

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

Crews are working to restore operations after the deaths of two employees.

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

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

Explosions at Clairton Coke Works, a U.S. Steel plant near Pittsburgh, left one dead, two missing and at least seven others ...

A gas valve failure caused the explosion at Clairton Coke Works on Monday morning that killed two people, U.S. Steel said ...