Police are using specialist drone equipment in their search for Robin Green who is missing from his Aberdeen home.
Mr Green was last seen walking along the B976 at the Mill of Strachan area at 2.30pm yesterday afternoon. It is thought he walked there from Banchory.
Efforts to find the pensioner, who was reported missing from the West End area of Aberdeen on Sunday, have been focused around the Feuchside area of Aberdeenshire.
He is described as white, of slim build, around 5ft 11ins with grey-coloured hair.
When last seen, he was wearing a light blue polo shirt with horizontal stripes and grey jogging bottoms.
It is possible he may have been wearing a black jacket and carrying a small green hiking bag.
Inspector Chris Kerr, from North East Community Policing, said: “We remain concerned for Robin’s welfare and as he is known to travel to the Deeside area, we have been focusing our specialist search activity there, including use of a remote piloted aircraft system.
“I am appealing to anyone who has been travelling along the B976 in the last 48 hours that has a dash-cam to please check back and see if there is any footage of a person matching Robin’s description that may be of use to us.”
Information can be passed to police by calling 101.