Crews respond to tractor trailer accident on I-81S in Roanoke County

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ROANOKE COUNTY, Va. (WDBJ7) -- A tractor trailer accident is causing some delays as people hit the road for the holiday weekend.

Crews are responding to I-81S near mile marker 135.1 in Roanoke County.

VDOT reports the south left shoulder is closed.

Stay with WDBJ7 for updates.