A female moped rider has been seriously injured in a collision on the A52 at Wyberton Fen, near Boston.
The incident happened around 7am this morning, Thursday October 1, and involved the moped and an Audi.
The moped rider has been taken to Boston Pilgrim Hospital with very serious injuries.
The A52 is closed between the Tesco roundabout and the Four Crossroads junction and is likely to remain so for some hours. Motorists are asked to avoid the area if possible and follow diversions.
Any witnesses who have not already spoken to police should contact the Collision Witness Hotline on 01522 558855.