Clairton, U.S. Steel and Coke Works
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20hon MSN
Gas valve failure during routine maintenance work may have led to fatal explosion, US Steel says
U.S. Steel says preparations for a routine maintenance task may have led to an explosion at a U.S. Steel coal-processing plant near Pittsburgh that left two dead, sent 10 to hospitals and damaged part of the sprawling facility.
4don 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.