The fatal explosion last week at U.S. Steel's Pittsburgh-area coal-processing plant has revived debate about its future just ...

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

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

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

U.S. Steel released preliminary findings about the potential cause of Monday's deadly explosion at U.S. Steel Clairton Coke ...

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

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

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

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

A blast furnace at Tata Steel. Over the past decade, a flood of cheap steel from China has transformed the global market. Now, European steel makers must also contend with punishing American tariffs.

U.S. Steel is threatening a shift away from integrated steelmaking, which it's done in Northwest Indiana for nearly 120 years, if the $14.9 billion Nippon acquisition falls through.

The explosion triggered a collapse, which made it dangerous for first responders to enter the building. Video obtained by sister station KETV shows the moment of the explosion at the plant.