The diver had been out on a boat north of Malin Head.
A diver has died following an incident off the coast of Donegal.
The diver was airlifted from a boat off Inishowen around 1pm yesterday afternoon.
The man is in his 30s but it is not yet known whether he is a local resident.
It has now been confirmed the diver passed away.
Malin Head Coastguard received a report of a diver who was unconscious on a dive boat north of Malin Head.
The diver was rushed to Letterkenny University Hospital by the Rescue 118 helicopter for treatment but was pronounced dead on arrival.