This afternoon the Irish Coast Guard were alerted to concerns for a diver who was at the slip at Howth Harbour, Co Dublin.
The local Coast Guard unit in Howth were tasked and were quickly on scene.
On arrival the team were met with a male diver in his 40s who had experienced a rapid ascent while returning to the surface from 15 meters depth. With the possibility of decompression sickness the Coast Guard team provided medical assistance until the arrival of an ambulance.
The casualty was taken to Beaumont Hospital where his condition is stable.