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

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

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

• At least one person is dead, 10 injured and one unaccounted for in an explosion at the Clairton Coke Works in Pittsburgh, ...

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation is in its early stages.

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

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

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

Ten people were hospitalized after the blast at a coke plant in Clairton, Pa., near Pittsburgh. One person who had been ...

The explosion took place at the US Steel Clairton Coke Works plant, located south of Pittsburgh, Pennsylvania.

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

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant that ...