Police dogs have been called out to search for missing German man Torsten Kulke who was last seen 11 days ago.
Over the weekend searches focused around an area where his rucksack was discovered near hazardous cliffs between Crowlista and Gallan Head.
Stornoway lifeboat was out all day, undertaking a seaward search of the bottom of cliffs and out to sea.
Coastguard teams and Hebridean Mountain Rescue volunteers scoured the moorland and clifftops.
Inspector Jane Nicolson said: "Sadly, despite extensive search activity, Torsten remains missing.
"His family have been kept fully informed during the enquiry and my thoughts are with them at this difficult time.
"Any new information we receive will be acted on and I would urge anybody who has information which could help us should call 101, quoting reference NH2952/17."
The 48-
He hired a taxi at Stornoway Airport to take him to an isolated spot between the villages of Eristeadh and Aird Uig.
There has been no sign him since then. Neither has he contacted family or friends.
Search squads from Stornoway Coastguard -
Searchers were also airlifted onto a mountain range as efforts continued.
Stornoway coastguard helicopter has made repeated sweeps across the district.
Boat operator Seatrek Cruises has also assisted with the search operation.
n leaving a taxi in the ’Torsten Kulke was last seen in the Aird Uig area on Friday and extensive searches have been carried out.
When last seen was wearing a white top, khaki trousers, heavy walking boots and carrying a rucksack or backpack. Mr Kulke is 6ft 3in tall and of medium build with light brown hair.
His family in Germany is being kept updated of developments.
Inspector Jane Nicolson said: "I can confirm that personal items belonging to Torsten were recovered during searches in the area where he most recently seen.
"We are working with colleagues in Germany to keep his family informed of developments.
"Our enquiries are ongoing and I would again urge anyone with information or anyone who believes they may have seen Torsten to get in touch with us by calling 101, quoting reference NH 2952/17."
Family in Germany reported the 48-
Western Isles Police established he travelled to Scotland and later boarded a flight to Lewis.
After arriving at Stornoway airport on Friday afternoon Mr Kulke hired a taxi to take him to Uig.
He asked to be dropped off in an isolated spot on a narrow single track road near Loch Mheacleit between the villages of Eristeadh and Aird Uig.
Search squads from Stornoway Coastguard -
Searchers were also airlifted onto a mountain range as efforts continued.
Stornoway coastguard helicopter has made repeated sweeps across the district.
Boat operator Seatrek Cruises has also assisted with the search operation.
The 48-
Extensive searches were carried out over the course of the weekend involving specialist Police resources, including the dog unit, as well as the Stornoway lifeboat, Coastguard personnel and the Hebridean Mountain Rescue Team.
Activity focused on the area where Mr Kulke was last seen near Aird Uig. Personal items and a rucksack belonging to Mr Kulke was recovered during searches of the area last week.
Inspector Jane Nicolson said: "Sadly, despite extensive search activity, Torsten remains missing.
"His family have been kept fully informed during the enquiry and my thoughts are with them at this difficult time.
"Any new information we receive will be acted on and I would urge anybody who has information which could help us should call 101, quoting reference NH2952/17."
Police dogs involved in search for missing man
7 August 2017
Torsten Kulke is missing
Hebrides Mountain Rescue Team are involved in the search.