The family of missing Northumberland woman Sally Allan and the police are growing increasingly concerned for her welfare.
Sally, 59, from Errington Road, Darras Hall, Ponteland, has not returned home after leaving in the early hours of Boxing Day and walking to Newcastle.
Police are still focusing their search on an area of the Quayside near to the Swing Bridge after a confirmed CCTV sighting of Sally at the rear of the Copthorne hotel at around 6am on Boxing Day.
Chief Inspector Stephen Readdie, of Northern Area Command, said: "We have been reviewing CCTV and are carrying out extensive enquiries to establish where Sally may have gone on Boxing Day morning. Our focus remains on the Quayside and marine searches will continue in the River Tyne."
Anyone with information to help is asked to contact police on 101.
Sally is described as white, 5ft 7" tall, slim build, with short silver/grey hair and may be wearing gold-rimmed glasses. She was believed to be wearing pink pyjamas, a cream-coloured fleece and cream-coloured Regatta waterproof anorak. It is out of character for Sally to go missing.
On December 30, police started searching Newcastle Quayside after the CCTV footage was discovered.
Her heartbroken family have said they are worried about her and begged her to come home.
A Search 4 Sally Facebook group has been set up on social-networking site Facebook and her son Clive has made a special video appealing for the public's help to find her.
Award-winning North East comedian Sarah Millican has supported the #Search4Sally appeal by retweeting a message and missing poster about the search.
A missing poster has been made and people are being encouraged to put it to spread the word as much as possible.
An American group dedicated to assisting searches for missing people has lent its support to #Search4Sally.