An explosion Monday at a U.S. Steel plant near Pittsburgh has left people trapped under the rubble, with emergency workers on site trying to rescue them, an official said.

There are no confirmed fatalities yet at the Clairton Coke Works, said Abigail Gardner, director of communications for Allegheny County.

There are no confirmed fatalities yet according to the Allegheny County director of communications. Sky4 WTAE Pittsburgh

Emergency workers are tying to rescue people trapped under the rubble. Sky4 WTAE Pittsburgh

The Allegheny County Emergency Services said a fire at the plant started around 10:51 a.m. and that it has transported five people.

The agency did not provide any more details on those people transported and would only say it was an “active scene.”

The Clairton Coke W

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