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.
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Anti-social Behaviour In Bray Raised With Justice Minister
Wicklow TD Edward Timmins contacted Minister Jim O'Callaghan as residents in the Boghall Road area report ongoing problems.
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Mark Norse from Newcastle will receive a mini flock of sheep worth more than €2,500.
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Saturday Breakfast
Sunny intervals
High: 22°C | Low: 14°C
Sunny intervals
High: 21°C | Low: 13°C
Sunny intervals
High: 23°C | Low: 12°C
Sunny intervals
High: 23°C | Low: 11°C
Sunny intervals
High: 23°C | Low: 11°C
