The A17 Washway Road in Holbeach was closed in both directions due to a car fire on Monday afternoon.
According to AA Traffic, the road was closed both ways between B1357 Common Road and Washway Road after the incident, which was reported through the app at 1.30pm.
Lincolnshire Police said a road closure is in place where the A17 meets the B1357. There were not believed to be any injuries and police said traffic is building, so motorists should avoid the area if possible.
It affected traffic between Fosdyke Bridge and Holbeach.
A spokesperson for Lincolnshire Fire & Rescue said the cause of the fire was unknown.
The spokesperson said: “Lincolnshire Fire & Rescue were called to Washway Road at Fosdyke in Boston to a vehicle on fire at 1.02pm.
“The Holbeach crew attended and used breathing apparatus and a hose reel to extinguish the fire. They left the scene at 1.53pm.”