Regulators are temporarily stepping up pollution monitoring in the Mon Valley after a deadly explosion at U.S. Steel’s ...

The health department began deploying mobile air units Thursday provided by Pennsylvania’s Department of Environmental ...

Two workers died and at least 10 people were injured after multiple explosions at the U.S. Steel Clairton plant.

Allegheny County is increasing air quality monitoring after an explosion at a U.S. Steel plant south of Pittsburgh killed two ...

Clairton, Pennsylvania was rocked Tuesday by an explosion at the U.S. Steel Clairton Coke Works. Clairton Mayor Richard ...

Pennsylvania Gov. Josh Shapiro is expected to speak with officials and provide an update after the U.S. Steel Clairton Coke ...

Organizations like the Breathe Project and the Group Against Smog and Pollution, in conjunction with the Allegheny County ...

Rescuers were continuing to search for one missing worker at the Clairton Coke Works more than five hours after mid-morning ...

A second Westmoreland County man was identified as the other victim who was killed Monday in an explosion at U.S. Steel’s ...

Family members tell Pittsburgh's Action News 4 Steven Menefee, a father of two, was a loving man who would give you the shirt off his back.