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

Data from the EPA and OSHA provide a glimpse into some of the previous violations and injury reports at the Clairton Coke ...

Brian Doyle remembers the explosion that hurled him to the coke plant’s floor — but little else from that day. It was a ...

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

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

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 ...

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

KDKA's Megan Shinn takes a look back at the news of the week, including the explosion at the U.S. Steel Clairton plant, the ...

In the last five years, U.S. Steel has paid more than $10 million in penalties for violations of the Clean Air Act at ...

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

U.S. Steel on Friday pinned blame for the deadly explosion Monday at the Clairton Coke Works on a valve failure that led to ...