An explosion at a steel plant near Pittsburgh, Pennsylvania in the United States has left one dead and dozens injured or trapped, with emergency workers on site trying to rescue victims, officials said.

An Allegheny County Emergency Services spokesperson, Kasey Reigner, on Monday said one person died and two were currently believed to be unaccounted for. Multiple other people were treated for injuries, Reigner said.

A fire at the plant started around 10:51am (14:50 GMT), according to Allegheny County Emergency Services.

“It felt like thunder,” Zachary Buday, a construction worker near the scene, told WTAE-TV. “Shook the scaffold, shook my chest, and shook the building, and then when we saw the dark smoke coming up from the steel mill and put two and two together, and it’s like somethi

See Full Page