A Monongahela business launched a fundraiser to benefit employees of the U.S. Steel Clairton Works after Monday’s explosion ...

Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near ...

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

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

When horrific situations strike in the Pittsburgh area, such like the U.S. Steel Clairton coke plant explosion that killed ...

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.

The company said pressure likely built up inside the valve, causing it to fail and leading to coke oven gas filling the area, ...

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