MONTGOMERY COUNTY, Va. (WDBJ7) - UPDATE: The Virginia Department of Transportation says the crash has been cleared.
ORIGINAL STORY: Virginia State Police are investigating a crash that is causing a backup in Montgomery County.
The crash is on southbound I-81 about a mile north of the junction of Virginia 8/Exit 114-Christiansburg.
The south left shoulder is closed, and traffic is moving slowly.
Click here for traffic updates.
Copyright 2019 WDBJ7. All rights reserved.