Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside ...

Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local ...

The explosion, followed by several smaller blasts, could be felt in the nearby community and prompted county officials to ...

Crews are working to restore operations after the deaths of two employees.

Two workers died after an explosion at the U.S. Steel Clairton plant near Pittsburgh, Pennsylvania. At least 10 other people ...

Two people are dead and 10 others injured after an explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh. The ...

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

Yesterday's devastating explosion at a steel plant just outside of Pittsburgh has now claimed a second life, officials report ...