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

The cause of the blast is still unknown. The Pennsylvania plant has racked up fines and faced lawsuits over emissions ...

An explosion at a U.S. Steel plant near Pittsburgh left one dead and dozens injured or trapped under the rubble Monday, with ...

Two people have died and 10 are injured following an explosion at a Pennsylvania steel plant on Monday, Allegheny County ...

Two steelworkers are dead after an explosion at the U.S. Steel Clairton Coke Works plant. The blast happened on Monday just ...

Officials are still working to determine the cause of an explosion that rocked a steel plant outside Pittsburgh, leaving two ...

Moments after an explosion erupted at a U.S. Steel plant outside Pittsburgh, company firefighters, local responders and ...

Two workers died after an explosion at the U.S. Steel Clairton plant near Pittsburgh, Pennsylvania. At least 10 other people ...

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