Rescue teams have been searching for two brothers after they failed to return from a hillwalking trip in Wester Ross on Thursday.
Alan, 56, and Neil Gibson, 63, had headed for Achnashellach with a black Pointer dog, called Archie.
Inverness Coastguard helicopter carried out a search then Stornoway Coastguard helicopter replaced it.
Mountain rescue teams from Kintail, Torridon and the RAF and search dogs have also been searching.
The Maritime and Coastguard agency said the search was covering a wide area taking in the peaks of Fuar Tholl, Sgorr Ruadh and Beinn Liath Mhor.
Weather conditions have been described as "tricky" with frequent snow showers.
Police Scotland has urged anyone who has seen the two men or their dog to get in touch.
It was previously thought the search effort was focused on Torridon.
One of the brothers was thought to have travelled from County Durham.