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

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 ...

An explosion rocked the U.S. Steel Clairton Coke Works facility near Pittsburgh Monday, leaving people trapped beneath the ...

Two people have died and 10 are injured following an explosion at a Pennsylvania steel plant on Monday, Allegheny County ...

Multiple explosions on Monday at a U.S. Steel plant near Pittsburgh killed two people and injured 10 others, according to the ...

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