Just in time for the afternoon commute, all northbound lanes in Fairfax County were temporarily closed on I-495 as of 3:20 p.m. on Thursday afternoon.
Traffic is backed up more than four miles, according to the Department of Transportation as the sea of cars continued to be held in place.
Delays extended to I-66, according to officials.
No additional details were released.
This is a developing story. Check Daily Voice for updates.
Want breaking news in the DMV as it happens, or want to contribute? Join the DMV All Incidents Facebook group.
Click here to follow Daily Voice Arlington and receive free news updates.