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Gas valve failure during routine maintenance work may have led to fatal explosion, US Steel says

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

Investigators release new details on what caused the US Steel Clairton Coke Works explosion

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant that ...
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‘It Didn’t Have to Be This Way’: After Another Explosion at Clairton Coke Works, Advocates Call for Accountability

The deadly blast at the U.S. Steel facility outside Pittsburgh was just the latest in a series of recent workplace accidents.

As investigators head to Clairton, U.S. Steel says it's ready to get to bottom of deadly explosion

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

Air quality concerns linger in the wake of steel plant explosion in Pennsylvania

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

The ballad of Clairton: an all American City in mourning

Clairton, Pennsylvania was rocked Tuesday by an explosion at the U.S. Steel Clairton Coke Works. Clairton Mayor Richard ...