Police divers have been searching waterways in Oxford for a missing 80-year-old woman.
Elizabeth Grigs, known as Betty, was last seen at her home in Edgeway Road, Marston, last Friday (Nov 19).
She received a telephone call at 7.30pm that evening but has not been seen since.
Volunteers have joined the search and police divers took a boat out on the river Thames on Tuesday (Nov 23) and Wednesday (Nov 24).
Miss Grigs is 5ft 5in, has brown eyes, bushy eyebrows, and long brown hair, usually tied in a bun.
She is slim and frail and has poor eyesight.
Tim Prince, a spokesman for Thames Valley Police, said: "There have been no sightings so far."
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