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 ...

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

Authorities confirmed a second fatality after an explosion at the U.S. Steel Clairton Coke Works facility outside of ...

An explosion at a U.S. Steel plant south of Pittsburgh killed two people and injured more than 10 others. The CEO has vowed ...

An explosion Monday at a U.S. Steel coking plant near Pittsburgh has left people trapped under the rubble, with emergency workers on site trying to rescue them, an official said.

Officials have confirmed that two girls and a relative died in an explosion at a Nebraska biofuels plant. The children were waiting for an employee to finish work at Horizon ...