Multiple explosions Monday at a U.S. Steel coking plant near Pittsburgh left one person dead and at least 10 injured, officials confirmed to sister station WTAE .

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It was previously reported that two people were unaccounted for, but officials said during a 3 p.m. press conference Monday that one person was rescued and transported to a local hospital for treatment.

"We're still engaged in the incident," Matthew Brown, chief of Allegheny County EMS said during the conference. "Our focus continues searching for one person who remains unaccounted for."

Brown said 20 EMS agencies and 14 local fire departments were called to the Clairton Coke Works to assist in the rescue and search efforts. Officials were first d

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