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

Officials have urged the press and community not to speculate about the cause of a deadly explosion at a U. S.

Multiple people have been injured in Pennsylvania, and several medical helicopters have been dispatched to the area.

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

Nippon Steel promised to invest $14B to keep US Steel's aging plants operating for decades but the deadly explosion at the Clairton coking plant will test its resolve through a costly crisis ...

An explosion at a U.S. Steel plant that shook the ground near Pittsburgh left two dead and sent at least 10 to hospitals. An Allegheny County spokesperson says an explosion ...

Multiple explosions on Monday at a U.S. Steel plant near Pittsburgh killed two people and injured 10 others, according to the ...

The tragedy has rocked the Mon Valley, and its congresswoman wants answers. Democratic Congresswoman Summer Lee is ...

Rescuers were continuing to search for one missing worker at the Clairton Coke Works more than five hours after mid-morning ...

An explosion at a U.S. Steel plant near Pittsburgh left one dead and dozens injured or trapped under the rubble Monday, with ...

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