Bauza Island, Doubtful Sound, where the divers got into trouble. Photo: Wikicommons
Sergeant Tod Hollebon said that police recieved a call that a diver was unresponive after being pulled from the water at 1.45pm.
A second boat with a doctor on board joined the scene but the doctor was unable to save the man after perfortming CPR.
Two other divers who pulled the man from the water have been flown to Invercargill Hospital as a precaution.