An American man is improving in Christchurch hospital after being evacuated from Antarctica on Monday.
The man, who is part of the United States Antarctic programme, had a suspected heart attack on Saturday.
The Royal New Zealand Air Force sent a C130 Hercules to Antarctica on Monday morning.
The 16-hour round trip involved both defence and civilian medics.
The RNZAF has been praised by the man's employer, which says the quick-turn around from New Zealand was impressive.
Scheduled flights to Antarctica as part of the summer work programme commence next mont