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

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

Two people are dead and 10 others injured after an explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh. The ...

Multiple explosions on Monday at a U.S. Steel plant near Pittsburgh killed two people and injured 10 others, according to the ...

Explosions at Clairton Coke Works, a U.S. Steel plant near Pittsburgh, left one dead, two missing and at least seven others ...

The Clairton Coke Works is considered the largest coking operation in North America and one of four major U.S. Steel plants ...

An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others. The CEO has vowed ...

An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured 10 others on Monday morning.

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

The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than ...