The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation ...

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

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

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

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

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

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

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

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

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

Nippon Steel promised to invest $14B to keep US Steel's aging plants operating for decades but the deadly explosion at the Clairton coking plant will test its resolve through a costly crisis ...