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

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

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 ...

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

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

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 ...

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

At least one person has died following multiple explosions that occurred at the U.S. Clairton Coke Works plant in ...