The man got into difficulty while swimming in the sea off Tullan Strand on Tuesday evening
Rescue teams are continuing to search for a man missing off the Donegal coast.
The 28-year-old man - understood to be a member of the Defence Forces - got into difficulty while swimming in the sea off Tullan Strand, near Bundoran on Tuesday evening.
The search operation involves the Malin Head Coastguard, the Air Corps, Bundoran RNLI Lifeboat and 120 members of the Defence Force.
Shane Smyth from the Bundoran RNLI says the search is not being scaled back, despite the length of time the man has been missing.
"These couple of days following the missing man are the most vital, so there's the chance he will be found hopefully very soon.
"The search is still concentrating on the area around Tullan Strand, and also slightly up coast towards the Leitrim coastline," he added.