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

(Reuters) -United States Steel said on Friday a fatal blast that killed two and injured 10 others at its Clairton Coke Works ...

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

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