Bike thieves have been caught on camera.
Doorbell footage posted on Witney Spotted Facebook page by householder Jasmine Ashman captures the moment thieves made off with her bike strapped to the roof of a car.
The bicycle was stolen by four men.
Ms Ashman made an appeal: "CCTV of my bike being taken on the top of the car by 4 males."
Thames Valley Police have now appealed for witnesses.
A spokesman said the theft occurred in Mossie Walk, Witney, at around 12.15am on Saturday (21/5).
"A group of four or five people entered a garage at the property and took a bicycle before driving off in a black or dark-coloured Audi.
"Anyone with any information or who may have dash-cam or CCTV footage of the incident is urged to call 101, quoting incident reference 0059 of 21 May or make a report online."
For anonymity, witnesses can also call the independent charity Crimestoppers on 0800 555 111.
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