A driver was threatened before having his car stolen during a robbery in Great Holm on Tuesday.
The incident happened around 10.10pm when a 23-year-old man from Bletchley was in his car, parked at Farnham Court, and a group of men approached him, threatened him and stole his black Fiat 500 – a 59 reg car.
Detective Sergeant Luke Grove said: “At this stage the motive for the robbery is unclear, except for the theft of the vehicle.
“However, we would urge anyone who witnessed this robbery or who has seen the stolen vehicle to contact us as a matter of urgency.”
Witnesses can call police on 101.