HARRISBURG, Pa. (AP) — The fatal explosion last week at U.S. Steel’s Pittsburgh-area coal-processing plant has revived debate ...

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation ...

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

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

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local ...

A devoted dad has been identified as one of the two steel workers killed from an explosion at a Pennsylvania steel plant on ...

Timothy Quinn, 39, of East Huntingdon Township, also died in the incident. Ten other people were injured. Three of them are ...

Authorities said their investigation has shifted to the cause of the explosion after they accounted for everyone who was missing.

Workers returned​ to U.S. Steel Clairton Coke Works on Tuesday morning, one day after an explosion killed two people.

"God is working through her. She's definitely a light within our neighborhood right now, for sure," Finch said. "It gets ...

Five people were killed and at least 20 were injured in the blast that sparked a huge fire at the Elastik gunpowder plant just over 100 miles southeast of Moscow.

"In science fiction, there are scenes where a beam is fired at something to destroy it, causing an explosion with debris ...