A community search will be held tonight in a bid to find missing pensioner Malcolm McGraw.
The 74-year-old has not been seen since leaving his home in Pitlochry at 11pm on Friday.
A Facebook page set up to share information about a missing Perthshire pensioner has been joined by more than 400 people in less than 24 hours.
Now, as police continue to scour the area, locals are preparing a search of their own.
Anyone who can help is asked to meet at Pitlochry Recreation Ground at 6.30pm on Tuesday.
Hi son Steve said: “The local community has been absolutely fantastic in both looking for him and getting the word out, I can’t thank them enough.
“We will keep looking and doing as much as we can and we’re grateful for any kind of help people are giving.”
It is hoped local gun dogs may be able to pick up the sent of Mr McGraw.
His family fear he may have fallen ill, after he stepped out without vital heart medication.
He is described as white, about 5ft 7in tall, slim with grey hair and slightly balding.
It is believed that, at the time of his disappearance, he was wearing a maroon coloured V-neck sweater, with maroon checked shirt.
He may also have had a lightweight green jacket.
Last seen at 11pm on Friday, it is thought he may have walked along Dalcapon Road, towards East Haugh, or taken a back road towards Ballinluig.
Posters have also been printed and are being distributed across Highland Perthshire.
Police Scotland said: “We would like to ask anyone who has any information which could assist us in our search for Malcolm, in particular if you believe you may have seen him, to call us on 101 or speak to any police officer.”
The incident reference number is 1069 of August 11.
