A 60-year-old biker has died after a crash involving a police car and a tractor on the A52 at Old Leake in Lincolnshire.
The incident happened at around 1pm on Sunday, October 11, near the junction with School Lane.
Lincolnshire Police said several vehicles were involved including a police car, a tractor and a motorcycle.
The rider of the motorcycle, a local man aged 60, died later in hospital from the injuries sustained in the crash.
Lincolnshire Police said an investigation is in the early stages and that the incident has been referred to the IPCC (Independent Police Complaints Commission).
The force is also appealing for anyone who may have been in the area or witnessed the collision to contact the witness hotline on 01522 558855.