Clairton, U.S. Steel and Coke Works
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Multiple people have been injured in Pennsylvania, and several medical helicopters have been dispatched to the area.
3don MSN
Video shows steel workers scrambling into wreckage left by explosion that killed 2 in Pennsylvania
By the time the scene was secure, two people were dead and more than 10 others were injured, including one who spent hours trapped in rubble left Monday by the blast that was powerful enough to shake nearby homes.