The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation ...

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

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

HARRISBURG, Pa. (AP) — Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel ...

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 ...

The investigation asking if companies in Esparto were involved in activities beyond what their licenses permitted will ...

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

Firefighters in Avon, Massachusetts are warning residents about the dangers of tabletop fire pits after one exploded inside a ...

An explosion in northern Peru has injured at least 10 people and damaged 25 homes. Authorities on Friday said the blast in ...

"In science fiction, there are scenes where a beam is fired at something to destroy it, causing an explosion with debris ...

Authorities are currently investigating the cause of the explosion. An explosion was heard in the vicinity of the Mazzeh area ...