Police said a bicyclist was hospitalized with "serious injuries" after being struck by a car. The driver was also injured, ...

U.S. Steel says its preliminary investigation found that the blast happened after pressure built up while a gas valve was being flushed ahead of maintenance work.

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

An explosion at a US Steel plant near Pittsburgh, Pennsylvania, left two people dead and at least 10 injured on Monday, ...

The preliminary findings say how the company believes the explosion occurred. A union statement cautioned the investigation is in its early stages.

The deadly blast at the U.S. Steel facility outside Pittsburgh was just the latest in a series of recent workplace accidents.

The Pennsylvania county where an explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than ...

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

The Clairton Coke Works, where an explosion killed two workers and injured 10, has a history of maintenance issues, ...

Clairton, Pennsylvania was rocked Tuesday by an explosion at the U.S. Steel Clairton Coke Works. Clairton Mayor Richard Lattanzi reflects on the sad day.