Traffic cameras show traffic is moving smoothly now between Fairfield and Lexington in Rockbridge County.
Southbound traffic on Interstate 81 is backed up about five miles between Fairfield and Lexington.
A crash on Interstate 81 is slowing traffic between Fairfield and Lexington in Rockbridge County.
As of 1:15 p.m., only one southbound lane was open near mile marker 198. Traffic was backed up about one mile, according to the Virginia Department of Transportation.
The crash appeared to involve a tractor trailer and at least one vehicle.