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

The deadly explosion at Clairton Coke Works near Pittsburgh occurred when a gas valve was flushed before planned maintenance, ...

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

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation is in its early stages.

An explosion at a U.S. Steel plant near Pittsburgh left one person dead and sent at least 10 to hospitals Monday and heavily ...

Pittsburgh Action News 4 has confirmed at least two people have died and nine others have been injured after multiple ...

The death toll from an explosion at a US Steel plant in Pennsylvania on Monday has risen to two after one person who had been ...

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

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

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

Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near ...

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