U.S. Steel says it believes a gas valve failure led to the explosion Monday morning at its Clairton Coke Works, in which two ...

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

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

United States Steel said on Friday a fatal blast that killed two and injured 10 others at its Clairton Coke Works plant near ...

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

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

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

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

Todd Barrett was with a crew of laborers at the Clairton coke works that morning when they all felt something. It was an ...

The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than ...