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 ...

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

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

The effects from U.S. tariffs as well as headwinds from foreign exchange and commodity prices were expected to increase, the Danish jeweler said. Airfares rose in July for the first time since January ...

U.S. Steel has released new details on what investigators believe caused the explosion at the Clairton Coke Works plant that ...