In a statement, the police said there are likely no survivors left on the island but 23 people were being treated for injuries.
Both New Zealanders and tourists from abroad were caught up in the eruption.
New Zealand Police said: “Police believe that anyone who could have been taken from the island alive was rescued at the time of the evacuation.
“Based on the information we have, we do not believe there are any survivors on the island.
“Police is working urgently to confirm the exact number of those who have died, further to the five confirmed deceased already.”

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The current Volcanic Alert Level for New Zealand is Level 3.