Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near ...

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

Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near ...

If you grew up in Pittsburgh or in one of the nearby steel towns, the deadly explosion at U.S. Steel’s Clairton Coke Works ...

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 Monongahela business launched a fundraiser to benefit employees of the U.S. Steel Clairton Works after Monday’s explosion ...

Test your knowledge of the week’s events as reported in The Wall Street Journal.