The tragedy has rocked the Mon Valley, and its congresswoman wants answers. Democratic Congresswoman Summer Lee is appreciative of U.S. Steel's efforts to get to the bottom of this, but she said this can never happen again.

The family of one of the workers injured in the Clairton Coke plant explosion Monday issued a statement, thanking the community for their concern and prayers.

Officials are sharing new information following a deadly explosion at U.S. Steel’s Clairton Coke Works on Monday, revealing what happened in the moments before the blast and outlining the company’s next steps.