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

CLAIRTON, Pa. (AP) — Investigators are working to determine the cause of an explosion that rocked a steel plant outside ...

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

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

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

Two people are dead and 10 others injured after an explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh. The recovery operation has ended, and the cause is under investigation.

Emergency responders are on the scene of an explosion at a U.S. Steel plant near Pittsburgh that has left people trapped ...