A tractor-trailer was engulfed in flames on Interstate 81 in Montgomery County on Monday afternoon.

At approximately 12:56 p.m. the Christiansburg Volunteer Fire Dept. and Christiansburg Rescue were sent to a vehicle fire at I-81 South at Mile Marker 120.

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When crews arrived they found the cab of the truck heavily involved in fire. Tankers were requested from Riner Volunteer Fire Dept. and Elliston Volunteer Fire Dept. to assist with water supply.

The fire was brought under control quickly, and no injuries were reported.

All lanes of I-81 South are now open, and the right shoulder is still closed.