MONTGOMERY COUNTY, Va. - The northbound lanes of Interstate 81 are closed just south of Christiansburg due to a tractor-trailer fire.
The driver of the truck was transported for injuries received in the crash, according to State Police.
One lane of Interstate 81 is expected to be opened by 9:50 p.m.
The fire happened at mile marker 114 in Montgomery County in the northbound lanes.
Drivers in both directions should expect delays.
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