Shoppers, motorists and church-goers are among those being targeted by police as they continue their hunt for a 90-year-old man reported missing a week ago.
William Ritchie, known as Bill, was last seen in the West Road area of Fraserburgh, Aberdeenshire, at around noon on January 12.
He was reported missing two days later, sparking a major operation to find him.
Despite CCTV checks and searches around the town involving specialist officers, no trace of him has been found.
On Sunday, officers are to hand out leaflets and stop drivers in the hope they can jog people's memories to remember information that could help.
Officers will be speaking to motorists at Boothby Road, a street Mr Ritchie regularly walks, in case anyone remembers seeing him, and they will be handing out posters at local shops, licensed premises and churches.
Inspector Kevin Goldie said: "It has been one week since Bill was reported missing and there has been no trace of him since despite a major search taking place in the town to track every route he's been known to walk in the past.
"Despite being relatively fit and healthy for his age - as far as we know - we are now seven days on and what with the weather we've had to contend with and the lack of contact, our concerns for him grow every day.
"People continue to come forward with information and we continue to be extremely grateful for this help. I know the local community is anxious to know where Bill is, and I can provide every assurance we are doing everything we can to find him."
Mr Ritchie is described as being around 5ft 7ins, with a slim build and short grey hair. He usually wears a black jacket or a waterproof jacket with the hood up, and a flat cap.
He regularly visits Asda, the local Co-op and the post office on Mid Street.
Anyone with information should is asked to contact police on 101.
Why are you making commenting on The Herald only available to subscribers?
It should have been a safe space for informed debate, somewhere for readers to discuss issues around the biggest stories of the day, but all too often the below the line comments on most websites have become bogged down by off-topic discussions and abuse.
heraldscotland.com is tackling this problem by allowing only subscribers to comment.
We are doing this to improve the experience for our loyal readers and we believe it will reduce the ability of trolls and troublemakers, who occasionally find their way onto our site, to abuse our journalists and readers. We also hope it will help the comments section fulfil its promise as a part of Scotland's conversation with itself.
We are lucky at The Herald. We are read by an informed, educated readership who can add their knowledge and insights to our stories.
That is invaluable.
We are making the subscriber-only change to support our valued readers, who tell us they don't want the site cluttered up with irrelevant comments, untruths and abuse.
In the past, the journalist’s job was to collect and distribute information to the audience. Technology means that readers can shape a discussion. We look forward to hearing from you on heraldscotland.com
Comments & Moderation
Readers’ comments: You are personally liable for the content of any comments you upload to this website, so please act responsibly. We do not pre-moderate or monitor readers’ comments appearing on our websites, but we do post-moderate in response to complaints we receive or otherwise when a potential problem comes to our attention. You can make a complaint by using the ‘report this post’ link . We may then apply our discretion under the user terms to amend or delete comments.
Post moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours.
Read the rules here