In Clairton, Pennsylvania, officials say one person was killed and one person is missing after a steel plant explosion this morning. The Allegheny County Health Department says air quality monitors ...

One person has died, one is unaccounted for and 10 are injured following an explosion at a Pennsylvania steel plant on Monday ...

The U.S. Steel Clairton Coke Works plant outside of Pittsburgh was the sight of multiple explosions Monday, leaving one ...

An explosion at a U.S. Steel plant near Pittsburgh has left one dead and dozens injured or trapped under the rubble, with ...

An explosion occurred Monday at a steel factory in Clairton, Pennsylvania, authorities said. A spokesperson for Allegheny ...

"The steel way of life is sacred here," he said. "The union way of life is sacred here and that’s why I fought for that when I was Lt. governor and that’s why I’m proud to be here today.” ...

An explosion at a U.S. Steel coking plant near Pittsburgh has left people trapped under the rubble. Here's what we know.

Officials across the state of Pennsylvania are reacting following the deadly explosions at the U.S. Steel Clairton Coke Works ...