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

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 ...

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

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

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

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

An explosion rocked the U.S. Steel Clairton Coke Works facility near Pittsburgh Monday, leaving people trapped beneath the ...

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

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

Authorities said their investigation has shifted to the cause of the explosion after they accounted for everyone who was missing.

Nippon Steel (OTCPK:NPSCY) (OTCPK:NISTF) promised to invest $14B to keep US Steel's aging plants operating for decades, but ...