Rescue crews raced to save multiple people trapped beneath the rubble after an explosion at a U.S. Steel plant near Pittsburgh on Monday, an official said.The blast happened just before 11 a.m. at the Clairton Coke Works. Abigail Gardner, director of communications for Allegheny County, told The Associated Press there are no confirmed fatalities yet.Clairton Mayor Rich Lattanzi told KDKA-TV that there have been reports of multiple injuries.MIDWEST BIOFUELS PLANT EXPLOSION, BUILDING COLLAPSE LEAVES 3 DEAD, INCLUDING 2 CHILDRENThe Allegheny County Emergency Services said it had transported at le...

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