A two-car collision on Interstate 270 in Frederick County killed one person Thursday night, and caused a miles-long backup that continued for hours after the accident.

Maryland State Police said the accident happened around 7:30 p.m. in the northbound lanes of the interstate just before the exit for Route 80, which leads to of the town of Urbana.

No details were available on the person who was killed in the crash, or the circumstances that caused it.

Traffic was backed up to the south as far as Route 121, also known as Clarksburg Road.

Get updates on your area delivered via e-mail