At least 1 dead in violent crash on I-270 in Montgomery County

Maryland State Police are investigating a fatal crash on I-270 Southbound near the Clarksburg exit on Wednesday.

Investigators believe a tractor trailer had stopped altogether in one lane because of heavy traffic when an SUV slammed into the rear of the trailer.

They say the SUV sustained "major damage," and the driver was declared dead at the scene.

Video from the scene indicated that at least one lane was shut down after the crash.

The driver has not been identified, nor have police indicated what may have caused the SUV to crash into the stationary tractor trailer.