A diver has been flown to Southland Hospital after getting into trouble in remote Looking Glass Bay, Fiordland.
The Rescue Coordination Centre sent a helicopter to the site after reports of a diver suffering from suspected decompression sickness, also known as "the bends", a Hato Hone St John spokesperson said.
A police spokesperson said they were notified of the incident at about 4.30pm.
The diver was taken to Southland Hospital in a moderate condition.