At least one person has died, and one person remains unaccounted for, while at least 10 people have been injured following ...

Video shows a huge plume of black smoke above the U.S. Steel Clairton plant after deadly explosions on Monday.

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

One person has died, one person is unaccounted for and at least 10 are injured following an explosion at a U.S. Steel plant ...

One worker died, one person is missing and 10 were injured after an explosion at the U.S. Steel Clairton Coke Works' two ...

An explosion Monday at a U.S. Steel plant near Pittsburgh has left dozens wounded and people trapped under the rubble, with ...

An explosion at a U.S. Steel plant south of Pittsburgh has killed two people and injured 10 others. One worker was rescued ...

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

One victim has been identified as Timothy Quinn, a father of three. Ten other people were injured, and five of those remain ...