Sleaford Road in Boston is shut to traffic after a car caught fire this lunch time.
A suspected electrical fault caused the Ford Ka to go up in flames, leaving it with severe damage. No-one was inside the parked vehicle at the time of the incident.
The road is closed at the junction with Lister Way, with traffic diverted past Asda.
It is suspected that the road could remain closed until about 2.30pm, with heavy traffic reported in the run-up to the closed section.