Rescuers have been searching for a man missing from an offshore installation.
The search operation was launched after the alarm was raised at around 9pm on Sunday evening.
Two oil supply vessels, a Coastguard helicopter and Coastguard aeroplane were involved in the search, the Coastguard said.
The installation from which the person was reported missing is around 100 miles south-east of Aberdeen.
A Police Scotland spokeswoman said: “Around 9.20pm on Sunday, 22 January, 2023, officers received a report of a 50-year-old man missing from an oil rig in the North Sea.
“Police are liaising with partner agencies to establish the full circumstances.”