Many local people will be aware of Sally Allan, who went missing from her home in Darras hall at 3am on Boxing Day.
Police have confirmed that there have been reported sightings of Mrs Allan, of Errington Road, Ponteland.
These include the Newburn area, where the grandmother-of-one, who is a popular walker, is known to visit.
And CCTV footage shows Mrs Allan on Newcastle’s Quayside, close to the Swing Bridge, shortly before 6am on Boxing Day.
As reported in the Hexham Courant Chief Insp. Stephen Readdie said: “We are still very concerned for Mrs Allan’s welfare and are desperate for her to be reunited with her family.
“If you see Sally, or anyone who you may think could be Sally, then we urge you to call the police.
“This is completely out of character for Sally and she has never been away from home for this length of time without contacting her family.”
Mrs Allan is 5ft 7in tall, of slim build, with short silver/grey hair, and may be wearing gold rimmed glasses. She is believed to be wearing pink pyjamas, a cream coloured fleece and cream coloured Regatta waterproof anorak.
If you have any information please contact police on 101 quoting reference 0258 26/12/15.