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 ...

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

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

The explosion this week at U.S. Steel's Pittsburgh-area plant has reignited debate about its future. The Clairton plant is ...

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

Devastation and rubble could be seen from Sky 4, Pittsburgh's only news chopper, following an explosion at US Steel Clairton ...

The second victim of the deadly explosion at the U.S. Steel Clairton Coke Works was a “mama’s boy” and devoted father of ...

Explosions at a massive United States Steel mill in Western Pennsylvania left two people dead and at least 10 injured, ...

One person is dead, one remains missing and 10 people were injured after an explosion at U.S. Steel’s Clairton Coke Works ...

U.S. Steel says its multi-billion-dollar Nippon Steel deal remains on track despite the Aug. 11 explosion at the Clairton ...