One of three Australians injured in a helicopter crash in Antarctica is up and walking about at Davis station.
The Australian Antarctic Division says all three are conscious and able to eat and drink, but two continue to be assessed for upper body injuries.
The specific nature of the injuries has not been disclosed but all three are still considered to be in a serious condition.
''The condition of one has improved to the extent of being up and able to walk about,'' a division statement said.
''The other two continue to be assessed and monitored for upper body injuries on a 24/7 basis.''
Medical staff in Antarctica and, using telemedicine technology, from the Royal Hobart Hospital are working with the patients.
The Australian Transport Safety Bureau (ATSB) will investigate Sunday evening's crash, which injured the chopper's pilot and two passengers as they returned from a penguin colony survey near the Amery Ice Shelf, about 278 kilometres from Davis.
The patients will be evacuated to Hobart once it is considered safe for them to fly and when weather permits, the division said.
''Given the nature of the incident and the extreme environment in which it occurred, we continue to manage them as having serious injuries,'' the statement said.