Search dogs and mountain rescue teams have been drafted into the search operation for a missing Scots pensioner.
The units are currently on their third day of search after William Hogg vanished last week. The 75-year-old was last seen at around 12.45pm on Wednesday, October 5, in the Callander area of Stirlingshire.
Mountain Rescue Teams from Killin and Loch Lomond say the last three days have been dominated by the search for William. Pictures show crews moving into wooded areas in Callander with a search dog in their efforts to locate the pensioner's whereabouts.