Police have released the last known image of a woman who went missing four days ago after abandoning her car.
Fay Barney, 50, was reported missing on Friday morning after leaving her home in High Wycombe.
She was last seen walking down Totteridge Road at 10.41am the same day.
Thames Valley Police later found her car abandoned on Hillary Road, less than a mile away, and believe she is travelling on foot.
The force has since released a CCTV image of her last known location, which shows the missing woman walking along a path next to an unknown building.
