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 ...

U.S. Steel on Friday pinned the blame for the deadly explosion Monday at the Clairton Coke Works on a valve failure that led ...

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

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

Pittsburgh Action News 4 has confirmed at least two people have died and nine others have been injured after multiple explosions occurred at the U.S. Clairton Coke plant in Pennsylvania.

Two workers died and at least 10 people were injured after multiple explosions at the U.S. Steel Clairton plant.

An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others. The CEO has vowed ...

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

The tragedy has rocked the Mon Valley, and its congresswoman wants answers. Democratic Congresswoman Summer Lee is ...

Two people were killed and 10 others were injured in an explosion at the U.S. Steel Clairton Coke Works plant on Monday.

Multiple people have been injured in Pennsylvania, and several medical helicopters have been dispatched to the area.