The tragedy has rocked the Mon Valley, and its congresswoman wants answers. Democratic Congresswoman Summer Lee is ...

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

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

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

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

The company defended its safety record as Investigators worked to determine the cause of the blast.

The explosion, followed by several smaller blasts, could be felt in the nearby community and prompted county officials to ...

The family of one of the workers injured in the Clairton Coke plant explosion Monday issued a statement, thanking the ...

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