Fire crews have finally managed to get a massive blaze under control that they've been battling since Thursday evening.
Thirty firefighters were deployed to Browns Island, in Auckland's Hauraki Gulf, around 7:30pm on Thursday when the fire first broke out.
A woman was found on the island, which is uninhabited, around 9pm.
She has since been taken back to the Auckland mainland and is being treated in hospital, but she has no "fire-related injuries", Detective Sergeant Tony McKenzie says.
"Police intend to talk to the woman in due course," he added.
Crews from across the Auckland region joined the fight on Friday morning, including two helicopters.
Strong winds had hampered earlier attempts to control the blaze, Northern Fire Service shift commander Scott Osmond says.
Earlier in the morning the blaze was engulfing more than 13.2 hectares of the islands, and principal rural fire officer Bryan Cartelle says the grass tends to hold a lot of dry matter.
"This can make extinguishing a fire more challenging, but the crews working today and overnight have done a sterling job," he says.
The helicopters have now been stood down and ground crews are dampening hotspots.
"We expect we will also have crews on the island until tomorrow to monitor the situation," Mr Cartelle says.
Browns Island is uninhabited and is a pest-free reserve run by the Department of Conservation.