A crewman on board a fishing vessel is currently being transported to hospital.
The operation is being coordinated by Valentia Coast Guard.
The Shannon based Coast Guard helicopter R115 has airlifted a crewman requiring hospitalisation off a fishing vessel operating approximately 170 miles Southwest off Mizen Head.
Top cover communication support was provided by an Air Corps Casa Maritime Patrol Aircraft.
The airlift took place shortly after 4pm and the helicopter is routing to University Hospital Kerry.