ROANOKE COUNTY, Va. – UPDATE
All lanes are open now and traffic is starting to move.
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ORIGINAL STORY
A multi-vehicle crash is causing a major backup on I-81 North in Roanoke County.
The northbound left lane is closed at mile marker 139, close to the Lakeside exit.
As of 9:15 a.m., traffic is backed up 8 miles.
The cars involved are now on tow trucks.
Check back for updates.