A water blaster which reportedly caught alight sparked a blaze that burned a house to the ground and ripped through 5ha south of Mamaranui, Northland.
Fire and Emergency northern shift manager Craig Dally said two helicopters were called in when the vegetation caught alight.
Nine fire crews from Dargaville, Rūāwai and Te Kōpuru were working on the ground on Sunday evening.
The fire was mostly out by about 8pm, with crews dampening down remaining hot spots, Dally said.
No other properties were involved and there were no reports of injuries.
NZ Transport Agency advised that part of State Highway 12 in Mamaranui was shut due to a large scrub fire about 6pm.
Just under two hours later, the road was reopened with the fire extinguished.
• Large fire in Christchurch seen across city
• Car-fire murders: How Rowan Baxter ambushed estranged wife Hannah Clarke, and her final act of bravery
• Car-fire murders: Killer who torched his family was a 'master manipulator', victim's parents say
• Crews contain fire after it rips through 40 hectares in Rolleston, Canterbury