Fresh search effort for missing hillwalker Jim Robertson
The search for missing hillwalker Jim Robertson is to be stepped up this weekend, nine days after he was last seen in the Cairngorms.
Police have invited other mountain rescue teams to join in a new "concerted search effort" for the 61-year-old on Sunday.
They also would like anyone visiting the area to come forward with any information that may help the search.
Mr Robertson, who is from the Glasgow area, has been missing since 2 March.
He is thought to have stayed in the Bob Scott Bothy close to Derry Lodge on the Mar Lodge Estate, about eight miles from Braemar.
Officers are continuing to appeal for information from anyone who was in the area between 1 March and 2 March.
Mr Robertson's daughter, Lynn Strachan, has urged other hillwalkers to keep a lookout for her father.
Earlier this week, a mountain rescue team leader said the chances of finding Mr Robertson alive were "minimal".
Insp Matt Smith, Police Mountain Rescue team leader, said: "Despite a huge search and rescue operation which has been running since Saturday we have so far failed to find any trace of Jim.
"Vast areas of the Cairngorms have been covered and we remain indebted to the commitment shown by the volunteers from Braemar, Aberdeen and Cairngorm Mountain Rescue Teams as well as the Search and Rescue Dogs Association and air support from the Coastguard.
"Information received from hill goers has helped to narrow things down but, given Jim has been missing for over a week, I'm still hopeful someone who may have encountered him on the hill between Monday 29 February and Wednesday 2 March may yet still come forward.
"On Sunday 13 March we have invited other mountain rescue teams to join us for another concerted search effort and I would widen my appeal to those who might be visiting the Cairngorms this weekend to contact the police immediately with any information which may assist the search teams."