ROANOKE COUNTY, Va. – UPDATE 6:56 P.M.:
According to VDOT, the crash has been cleared.
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ORIGINAL STORY:
A multi-vehicle crash is causing delays in traffic on Interstate 81, according to VDOT.
Authorities said the crash happened on I-81 North at mile marker 135.6.
As of 6:39 p.m., traffic was backed up about two miles.