A search is under way after a diver was reported missing in the Pentland Firth.
The Coastguard launched an operation after an alarm was raised at around 6pm on Tuesday.
The strait, in the north of Scotland, separates the Orkney Islands from Caithness.
A spokesperson for Coastguard said: “HM Coastguard is coordinating the search for a diver in Pentland Firth.
“The alarm was raised today at about 6pm.
“The Coastguard helicopter from Sumburgh has been sent to assist, along with RNLI boats from Longhope and Wick, and Coastguard Rescue Teams from Kirkwall and St Margaret’s Hope.
“Three nearby vessels are also supporting.”
The RNLI said the search is ongoing.