Rescue crews will not be able to continue the recovery operation at the site of Saturday's helicopter crash in Fox Glacier due to poor weather conditions.
It was earlier reported that a "significant break" in weather was needed to attempt the recovery, and Inspector John Canning has just confirmed at least two hours will be needed to make progress.
Police aren't expecting that break will happen today, but the forecast for tomorrow looks better.
The glacier is unstable and moving up to a metre a day which could impact the operation, police have been told.
Post mortems will take place this morning in Christchurch on the victims who have been recovered.
The cause of the crash is still not known, but Senior Constable Brent Swanson said it is "inevitable" there is more than one reason an accident happens.
"There may be some things that trigger the accident itself… [like] the environment or circumstances in which the accident occurred," he said.
Seven people were on board the helicopter at the time; all were tourists except the Kiwi pilot.