Explore the recent preliminary findings that reveal the cause behind the devastating explosion at Clairton Coke Works.

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

When an explosion at U.S. Steel’s Clairton Coke Works tore through the quiet summer day last week, it affected every single ...

HARRISBURG, Pa. (AP) — The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate about its future just as the iconic American company was emerging from a ...

A Mobile Air Unit provided by the Pennsylvania Department of Environmental Protection and Carnegie Mellon University made ...

The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate about its future just as the iconic American company was emerging from a long p ...

U.S. Steel said its investigation indicates the explosion happened when workers were flushing a gas valve in preparation for ...

Channel 11 spoke exclusively with United Steelworkers Local 1557 Vice President Richard Tikey, sharing his reaction to new details in the investigation into the deadly explosion at the Clairton Coke ...

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