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 ...

A U.S. Steel executive said Tuesday there were no indications of safety concerns leading up to the explosion a day earlier at ...

A major rescue mission was underway at the US Steel Clairton Coke Works plant near Pittsburgh, Pennsylvania, which exploded ...

There are no confirmed fatalities at the Clairton Coke Works, said Abigail Gardner, director of communications for Allegheny ...

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

The Clairton Coke Works plant near Pittsburgh, the biggest facility of its kind in the US, has been the site of multiple ...

Timothy Quinn, a 39-year-old father and second-generation steelworker, was among the two killed in the Monday explosion at a ...