A CSX freight train derailed and exploded this afternoon near Baltimore after colliding with a tractor trailer, news sources are reporting. Although numerous witnesses report a loud explosion accompanied by intense heat and the incident caused a major disruption by forcing the shutdown of U.S. 40, only one injury is being reported: that of the truck driver, who was taken to a nearby hospital for treatment.

A spokesperson for Baltimore County said there were only two people aboard the train at the time of the accident, and that the train was not carrying any hazardous materials.

An unknown number of buildings near the site were damaged and 300 students at a nearby school were instructed to shelter in place.