A rescue operation was underway for people trapped under rubble, while a cause for the explosion has not been confirmed.

Allegheny County officials said one person has died as a result of an explosion at a U.S. Steel plant in Pennsylvania.

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

The plant, a massive industrial facility along the Monongahela River south of Pittsburgh, is considered the largest coking ...

One person has died and dozens are reportedly injured or trapped under rubble following an explosion at a U.S. Steel plant ...

• At least 1 person is dead and two unaccounted for in an explosion at the Clairton Coke Works in Pittsburgh, Pennsylvania. • Dozens are hurt and people are trapped under rubble, The Associated Press ...

A rescue operation is underway for people trapped under rubble following an explosion at a Pennsylvania steel plant, ...

Officials say a rescue operation to save people trapped under rubble is underway after an explosion at U.S. Steel Clairton ...

Authorities said they were responding to an explosion at the U.S. Steel Clairton Coke Works facility outside of Pittsburgh on Aug. 11.

• There has been an explosion at the Clairton Coke Works Steel Plant in Pittsburgh, Pennsylvania. • Dozens are hurt – and people are trapped under rubble, the Associated Press reported. Video captured ...

Authorities said they were responding to an explosion at the U.S. Steel Clairton Coke Works facility outside of Pittsburgh on ...

"My team and I are tracking this explosion and waiting for more information. For those in the area, please listen to local officials and avoid the area," Pennsylvania Sen. John Fetterman said in a ...