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

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

"Pressure built inside the valve, leading to valve failure and coke oven gas filling the area and ultimately exploding when ...

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

Qiyam Ansari was driving to work the morning of Aug. 11 when he felt and saw an explosion occur just down the road in Clairton, Pennsylvania.

A new space Downtown that celebrates brave women and courage holds special significance to the emcee who directed the ...

U.S. Steel says it believes a gas valve failure led to the explosion Monday morning at its Clairton Coke Works, in which two ...