A woman has been injured following a collision between a petrol tanker and a car on the A1173.
The collision took place between Riby and Caistor.
Traffic is being diverted at the junction with the A18.
Police say a woman sustained injuries and is receiving treatment at the scene.
They say her injuries are not believed to be serious or life-threatening.
Lincolnshire Police have advised motorists to avoid the area if possible.