ROANOKE COUNTY, Va. – UPDATE
All lanes are now open, and the detour is being removed, according to VDOT.
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Authorities said congestion remains, so drivers should still expect delays.
ORIGINAL STORY
The Virginia Department of Transportation says a multi-vehicle crash is the cause for a backup on Interstate 81 in Roanoke County.
Authorities said both southbound lanes of I-81 at mile marker 131.8 in Roanoke County remain blocked due to a multiple vehicle crash involving an overturned tanker.
Traffic can detour onto Route 11/460 at exit 132 (Dixie Caverns).
As of 10:15 a.m., traffic backups are approximately 5 miles.
Stay with 10 News for updates.