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

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

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

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

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

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.

Data from the EPA and OSHA provide a glimpse into some of the previous violations and injury reports at the Clairton Coke ...