Police have been handing out leaflets and putting up posters around Wetherby as the search for missing pensioner Jean Jellings continues.
The missing person alert was sparked last Friday after the 84-year-old failed to return to her home at Wetherby Manor from an early morning walk.
A force spokesman said that the Neighbourhood Police Team had been out in the town.
“The search is still ongoing and searches around the river are continuing,” he said.
Det Insp Mark Swift, of Leeds District CID, said: “Mrs Jellings has never been missing before and her disappearance is completely out of character and along with her family we are increasingly concerned for her welfare.
“We urgently need to hear from anyone who may have seen her.
“She was living in supported accommodation in Wetherby but was mobile and would often go into Wetherby town centre or for walks near the bandstand and river.
“Extensive searches, including the police helicopter, have been ongoing since she was reported missing.”
On Monday police released a CCTV image which was taken from the New Inn pub showing a woman dressed in dark clothing at around 6.40am on Friday.
The footage also shows a man and police are keen to speak to him as a potential witness.
Det Insp Swift added: “The poor quality of the CCTV means we are unable to confirm if the female is Jean Jellings, but we believe it may be given the time, location and the person’s build.”
After reported possible sightings, police think that Mrs Jellings walked along Westgate before turning onto Castle Gate.
Mrs Jellings had recently moved from Bardsey where she had lived for 50 years, to Hadrian Healthcare Group owned Wetherby Manor, from where staff have been supporting Mrs Jellings’ family.
Managing director Jas Gill said: “Whilst leaving Linton House independently was not unusual for Jean, we contacted her family and the police when she had not followed her usual morning routine on Friday.
“We are extremely concerned for her welfare and are supporting her family at this time.
“We have provided as much information as possible to help the police with their continuing search.”
Mrs Jellings is described as five-feet four inches tall, with grey hair.
Anyone with any information is asked to contact the Leeds District CID based at Elland Road Police Station via 101 quoting log number 398 of February 20.