A 72-year-old woman battling breathlessness, chest pain and severe fatigue — 14 years after undergoing major heart surgery — was given a new lease on life through a rare and risky intervention ...

A deadly explosion at U.S. Steel’s Clairton Coke Works near Pittsburgh has killed two workers and injured ten others after a ...

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

The company released its preliminary findings from an investigation into Monday’s explosion that killed two workers.

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

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

Flushing of a gas valve made during maintenance preparation may have led to the deadly explosion at the U.S. Steel Clairton ...

Nearly a week after a mechanical failure led to millions of gallons of water dumping out of Alice Lake at William O'Brien State Park, Minnesota's Department of Natural Resources is trying to focus on ...

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