An HGV drove off after a crash with a car on the A1 northbound.
It happened yesterday (December 5) between 6.45am and 7am, near the Marston sliproad.
The driver of the car, a red Kia Picanto, did not suffer any injuries.
Lincolnshire Police want to hear from anyone who has information about the HGV, which drove away down Toll Bar Road following the collision.
Anyone with information should call 101.