In the last five years, U.S. Steel has paid more than $10 million in penalties for violations of the Clean Air Act at Clairton.

The deadly explosions that happened Monday at U.S. Steel's Clairton Coke Works facility come following several different incidents at the plant over the past several years, including one incident in February. A flaring and fire at the Clairton plant in February sent two people to the hospital.

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

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.

Authorities on Thursday identified the second person who was killed in an explosion at U.S. Steel’s Clairton Coke Works Monday. Steven Menefee, 52, died at the steel plant Monday, authorities said. The explosion at Clairton Coke Works,