A diver has gone missing in Orkney waters.
Emergency services were alerted to the incident at Scapa Flow on Sunday afternoon.
A multi-agency operation was launched, which included Coastguard teams from Kirkwall and Stromness and lifeboat crews from Longhope, Stromness and Hoy.
A search and rescue helicopter from Sumburgh also took to the air to help.
A spokesperson from HM Coastguard said the search was stood down at around 2am on Monday “pending further information”.
They stated: “At 2.50pm yesterday, HM Coastguard was alerted to an overdue diver at Scapa Flow.
“Coastguard rescue teams from Kirkwall and Stromness, lifeboats from Longhope, Stromness and Hoy and the search and rescue helicopter from Sumburgh carried out an extensive search.
“The search was stood down at 2am today pending further information.”
Scapa Flow was an important Royal Navy base during the World Wars and was the scene of the scuttling of the German High Seas Fleet in 1919.
The sunken German ships are a well-known and popular diving spot.