An explosion Monday at a US Steel coking plant near Pittsburgh has left people trapped under the rubble, with emergency ...

A timelapse from the Breathe Project captured an explosion at the U.S. Steel Clairton Coke Works plant in Pennsylvania.

A timelapse video and photos captured by the Breathe Project show the massive plume from a deadly explosion at the U.S. Steel ...

An explosion at the plant near Pittsburgh has left one person dead and dozens injured or trapped under the rubble, with emergency workers on site trying to rescue them.