The union vice president at U.S. Steel Clairton Coke Works is shedding new light on what led to the deadly explosion.

HARRISBURG, Pa. (AP) — The fatal explosion last week at U.S. Steel's Pittsburgh-area coal-processing plant has revived debate ...

The explosion at U.S. Steel's Clairton Coke Works left a community in disbelief, and nearly two weeks later, support ...

Residents of steel communities say fence-line monitoring for dangerous air pollution must be mandatory. Truthout needs your ...

A devoted dad has been identified as one of the two steel workers killed from an explosion at a Pennsylvania steel plant on ...

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

U.S. Steel released preliminary findings about the potential cause of Monday's deadly explosion at U.S. Steel Clairton Coke ...

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

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

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

The deadly explosion at Clairton Coke Works near Pittsburgh occurred when a gas valve was flushed before planned maintenance, ...

U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing ...