Thames Valley Police is appealing for information to help locate Louise Rolfe, age 52, who is classed as a 'high risk' missing person.
She is believed to be near the area of the Blue Lagoon Local Nature Reserve in Bletchley.
Louise is 5'8", slim build and currently has a bald head. She may be wearing a blue baseball cap.
Thames Valley Police has requested that anybody with any information should call 101 urgently quoting ref 160 26/08/20.
UPDATE 26/08 11:18: Police have confirmed that she has now been found safe.