BOTETOURT COUNTY, Va. – UPDATE
This crash has been cleared.
A crash has closed all southbound lanes of I-81 in Botetourt County, according to VDOT.
Authorities say the crash happened near mile marker 167.5.
As of 6:15 a.m., traffic is backed up for about 1.5 miles.
Stay with 10 News as this breaking news story develops.