The body of a fisherman has been recovered from the sea off Co Cork.
The man, who has not been identified, was found after a walker spotted his 5m (17ft) fishing boat, which had capsized about 150m (492ft) from the shoreline at Gurranes.
Adrian Carroll, spokesman for Valentia Coast Guard, which co-ordinated the search, said the walker was a voluntary member of the nearby Castletownbere Coast Guard Unit.
"The fishing boat had not been reported missing," said Mr Carroll. "This was purely the result of a walker, who also volunteers for the Coast Guard, just happening to spot the boat and being quick enough to raise the alarm."
The emergency services were alerted at around 1.30pm. The Castletownbere Lifeboat and Coast Guard were involved in the search, as well as services from Shannon and a number of local fishing boats. Mr Carroll confirmed the body was recovered at around 3pm and taken to Castletownbere, where it will be removed to the nearest hospital for a post-mortem examination.
Three other bodies were recovered from the sea in separate tragedies on Tuesday.
Poet and farmer John O'Leary drowned after his boat capsized while out sailing with his 17-year-old son Christie on the Beara peninsula in west Cork.
Fishermen Michael Galvin and Noel Dickinson drowned off the Co Clare coast, also on Tuesday. Their 12m (39ft) fishing boat, Lady Eileen, was reported missing after failing to return home to the fishing village of Quilty.
Agriculture, Food and Marine Minister Simon Coveney said this has been a "shocking and tragic" week in a year that has seen much loss and sadness at sea.
The funerals of both Mr Galvin and Mr Dickinson took place in Quilty. Mr Coveney visited their families. "My heart goes out to all of the families who are struggling to deal with the loss of their loved ones," he said.