The incident happened off Wexford's Hook Head this evening.
The father of four in his forties was taking part in an underwater search for a fisherman who went missing from a trawler off the Saltee Islands yesterday morning.
The alert was raised shortly after noon today as he returned to the surface after a dive.
He was treated by colleagues at the scene and airlifted to University Hospital Waterford where he has since been pronounced dead.
Elderly Man Hospitalised With Serious Injuries Following Bray Bus Collision
Gardaí make call for any footage, including dash-cam, after an incident in Bray involving a bus and pedestrian
Snow Warning Issued For Wicklow After A Day of Wind and Rain
Temperatures are expected to drop to from 9pm. Wicklow County Council has confirmed county roads will be gritted tonight.
Arklow Born Olympic legend Ronnie Delany — Immortalised Forever In Gold Dies Aged 91
Wicklow-born sporting legend Ronnie Delany is remembered fondly in Arklow where he was born and forever immortalised in marble after his golden glory at the Olympics
Wicklow To Receive Government Funding To Bring Vacant Local Authority Homes Back Into Use
€1.36m is allocated to bring vacant social homes back into use in Wicklow
Major Wicklow Train Station Upgrade Moves Ahead as DART Plans Progress
Major upgrade planned for Wicklow Train Station with work on new bridge to begin this year
Light rain
High: 13°C | Low: 10°C
Light rain
High: 12°C | Low: 10°C
Light rain
High: 12°C | Low: 9°C
Light rain
High: 12°C | Low: 9°C
Light rain
High: 13°C | Low: 10°C
