Navy and police divers are scouring the waters around New Zealand’s White Island in search of the remaining two victims of Monday’s volcanic eruption that left at least 16 dead and dozens severely burned.

A team of six men and two women from the New Zealand Defence Force started a retrieval operation from the island from first light on Friday, despite ongoing warnings of further activity from the volcano.

The team, wearing protective suits and using breathing apparatus owing to the threat of toxic gases, recovered six bodies which were then transferred via helicopter to a navy ship, the HMNZS Wellington, and taken to Auckland for identification.

New Zealand Defence Force and Police staff recover bodies
Image: New Zealand Defence Force and Police staff recovered six bodies on Friday
An aerial view of White Island
Image: An aerial view of White Island

Two more bodies of victims known to have been on the island could not be located during the four-hour mission.

Police believe one of the missing bodies was seen in the water close to the island by rescue teams on Tuesday. The location of the other body is not known.

Divers began the search for the bodies on Friday but were forced to stop near evening when weather conditions deteriorated. An aerial search of the island was also suspended.

A military plane and helicopter are seen at the airport in Whakatane, New Zealand
Image: A military plane and helicopter are seen at the airport in Whakatane, New Zealand

Authorities say 47 people from seven nationalities were visiting the island when it erupted – many were from a Royal Caribbean cruise ship that had left Sydney two days earlier.

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There were 24 Australians, nine Americans, five New Zealanders, four Germans, two Britons, two Chinese and a Malaysian in the area at the time.

New Zealand Defence Force and Police staff recover bodies
Image: The authorities are working to recover bodies from a desolate landscape

Authorities have faced growing pressure from families of the victims and the local community to bring back those killed as soon as possible.

But Deputy Commissioner John Tims, National Operations Commander, said the identification process was “long and complex”.

He added: “The victims and their families are our priority but we also have important obligations.

“We must work on behalf of the Coroner to ensure correct identification.

“It would be unforgivable to get the identification process wrong.”

New Zealand Defence Force and Police staff recover bodies
Image: A number of bodies needed to be recovered from the water

While no lawsuits have yet been filed, legal experts say they expect action in US courts by injured passengers and families of those who died.

Maritime lawyers claim the firm’s potential liability could hinge on whether the eruption was an unforeseeable “act of God”.

Volcano on White Island in New Zealand erupts. Pic: GeoNet
Image: The volcano on White Island erupted on Monday. Pic: GeoNet

Royal Caribbean ticket terms posted on its website suggest the company is not liable for any injury, death or loss of property caused by an act of God – as well as war, terrorism or other events beyond the company’s control.

It will likely argue the disaster was an extraordinary event no one could reasonably foresee, according to Robert Kritzman, a lawyer with Baker Donelson in Miami.

He said: “If a volcano were to erupt, clearly that isn’t negligence on anyone’s part, that’s nature.”

Smoke from the volcanic eruption of White Island is pictured from a boat
Image: Smoke from the volcanic eruption of White Island is pictured from a boat

Royal Caribbean did not respond to questions about missing passengers or whether it told passengers of the risks of visiting the island.

In an email, the company said: “We grieve this tragic loss. We will to continue to offer our support and services to the families during this difficult time”.

New Zealand Defence Force and Police staff recover bodies
Image: Using boats the authorities are travelling to the island

Prime Minister Jacinda Ardern has called on New Zealanders to observe a minute’s silence in memory of victims of the disaster at 2.11pm on Monday, exactly a week from the eruption.

Ms Ardern and her Cabinet will pause in silence during their regular meeting at parliament in Wellington.

“Wherever you are in New Zealand or around the world, this is a moment we can stand alongside those who have lost loved ones in this extraordinary tragedy,” she said.

“Together we can express our sorrow for those who have died and been hurt and our support for their grieving families and friends.”

New Zealand's Prime minister Jacinda Ardern addresses the media following the eruption
Image: New Zealand Prime minister Jacinda Ardern

White Island’s volcanic alert has been lowered to two – there has been no further eruption since Monday, when the level had briefly been raised to four.

Its alert level since late Monday had been three, on a scale where five signifies a major eruption.