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

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

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

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

The explosion happened when workers were flushing a gas valve in preparation for maintenance on two of the plant's coke oven ...

An explosion at a U.S. Steel plant near Pittsburgh left one person dead and sent at least 10 to hospitals Monday and heavily ...

The Clairton Coke Works, where an explosion killed two workers and injured 10, has a history of maintenance issues, ...

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

A major rescue mission was underway at the US Steel Clairton Coke Works plant near Pittsburgh, Pennsylvania, which exploded ...

Authorities said 10 other workers required hospital treatment — including five listed in critical but stable condition — ...

T-shirts and signs are now on sale to benefit the victims of the Clairton Coke plant explosion. “Just watching the video, it was stunning that had, in an instant, everything had changed for employees, ...