HARRISBURG, Pa. (AP) — Preparations for a routine maintenance task may have led to an explosion at a U.S. Steel ...

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 ...

Halle Berry Has Cheeky Response to Ex David Justice’s Remarks About Her Not Being ‘Motherly’ NCAA imposes 10-year "show cause" order on Jim Harbaugh Real-Time Meltdown: China’s Economy Is Falling ...

The Allegheny County Health Department announced that Mobile Air Units will be deployed in the Mon Valley as part of an ongoing investigation.

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

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