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

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 ...

Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside ...

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local ...

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

Authorities confirmed a second fatality after an explosion at the U.S. Steel Clairton Coke Works facility outside of ...

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

Two people are dead and 10 others injured after an explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh. The ...

Officials provided an update on an explosion at a U.S. Steel plant near Pittsburgh, Pennsylvania, that left at least one ...

The company defended its safety record as Investigators worked to determine the cause of the blast.

The explosion triggered a collapse, which made it dangerous for first responders to enter the building. Video obtained by sister station KETV shows the moment of the explosion at the plant.