The body of a man in his 70s was recovered from the water off Teelin last night.
It followed an incident in which a trawler was washed onto rocks nearby.
An alert had been put out and winchman from the Rescue 118 helicopter boarded a boat around 9pm last night.
However, nobody was found on board.
A follow-up search discovered a body in the water and the man was pronounced dead at the scene.
The man is understood to local and from the south Donegal area.
The search operation involved a number of agencies including the Bundoran and Arranmore lifeboats, Killybegs Lifeboat, Sligo Lifeboat and the Rescue 118 helicopter.
The search was co-ordinated by the
A full investigation into the circumstances surrounding the incident has been launched.
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