Two patients have been taken to Kew Hospital in Invercargill following a diving incident in Blanket Bay.
Police said earlier that a diver had been pulled from the water at Blanket Bay in Doubtful Sound and was unconscious.
But St John said in a statement that two patients had been taken to hospital and were in a moderate condition.
Police and ambulance both responded and a helicopter attended the scene.
AdvertisementAdvertise with NZME.
The report came at 1.45pm from a boat on the water in the area.
Poor reception in the area has meant it has been difficult for police and ambulance to get updates.