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

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

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

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

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

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 they believe caused the explosion at the U.S. Steel Clairton Coke Works plant that killed 2 people and injured 10 others.

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

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

United States Steel Corp. said Friday the fatal blast that killed two workers at its Clairton Coke Works facility in ...

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