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 ...

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

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, ...

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

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 ...

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

Local leaders and officials expressed concern support following the explosion at U.S. Steel’s Clairton Coke Works. Emergency ...

Todd Barrett was with a crew of laborers at the Clairton coke works that morning when they all felt something. It was an ...