Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

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

An explosion at a U.S. Steel plant near Pittsburgh left two dead and sent at least 10 to hospitals Monday and heavily damaged ...

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

The blast at U.S. Steel Clairton Coke Works, located in the Monongahela Valley near Pittsburgh, injured at least 10 others.

At least one person was killed and ten were hospitalized after an explosion at a U.S. Steel plant in Clairton, Pa.

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

One person has died and two are believed to be missing in the explosion at a U.S. Steel plant, Allegheny County emergency services spokesperson Kasey Reigner said. Multiple other people were treated ...

Multiple people have been injured in Pennsylvania, and several medical helicopters have been dispatched to the area.