A 32-year-old woman died following a crash involving multiple cars on the A1 at Little Ponton on Friday evening.
The accident happened at around 6.10pm on the A1 southbound at the junction with the A607 and is being investigated by police.
A woman from Peterborough died in the accident when the silver Nissan Micra she was driving left the road and crashed. She was pronounced dead at the scene.
No one else was in the vehicle and there were no other casualties.
Anyone who witnessed the incident is asked to contact Lincolnshire Police on 101 quoting incident 304 of January 18.
The A1 has now completely re-opened in the Grantham area.