Wreck cleared on I-81 South in Botetourt County

BOTETOURT COUNTY, Va. - UPDATE

The wreck is now cleared. 

ORIGINAL STORY

A wreck on I-81 South is causing a major backup.

The southbound left lane is blocked at mile marker 162, which is in Buchanan near one of the Route 11 exits. 

There is a 4-mile backup, as of 12:15 p.m. 

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