UPDATE
A car fire on I-81S in Montgomery County has been cleared, according to VDOT.
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ORIGINAL STORY
A car fire on I-81S is causing delays in Montgomery County, according to VDOT.
Authorities say the crash happened near mile marker 115.
As of 5:36 a.m., the southbound right lane and right shoulder are closed.
Stay with 10 News as this breaking news story develops.