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 ...

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 ...

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

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

An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others. The CEO has vowed ...

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

"Pressure built inside the valve, leading to valve failure and coke oven gas filling the area and ultimately exploding when ...

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

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 ...