(Updated at 3:40 p.m.) Arlington County firefighters and paramedics responded to the scene of a serious accident on I-66 near Glebe Road.
A vehicle somehow overturned on the on-ramp from Glebe to eastbound I-66. Initial reports suggest two people were hurt in the wreck and one has potentially serious injuries.
At least one person was reported to be trapped in the vehicle after the crash, according to the fire department dispatch.
During the emergency response there were significant delays in both directions on I-66. Those delays have since mostly dissipated.