Workers were heating coal and preparing for routine maintenance when an explosion rocked a U.S. Steel plant outside ...

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

Regulators are temporarily stepping up pollution monitoring in the Mon Valley after a deadly explosion at U.S. Steel’s ...

Paul Solway, 57, is accused of destroying property with intent to endanger life after an explosion ripped through a terraced ...

Ten others were injured, and people who live near the plant were urged to stay inside. Three explosions at U.S. Steel’s ...

After a 2-hour weather delay at Subaru Park, Bradley Carnell's Philadelphia Union flexed their resiliency in a ...

A second Westmoreland County man was identified as the other victim who was killed Monday in an explosion at U.S. Steel’s ...

The second person killed in Monday’s deadly explosion at the U.S. Steel Clairton Coke Works has been identified as ...

The office of the Allegheny County medical examiner identified a second man who was killed in an explosion at the Clairton ...