A large fire in the summit of one of Auckland's most prominent volcanoes last night was most likely caused by fireworks, the Fire Service says.
Firefighters were alerted to a fire in Mount Eden's crater about 2.30am, fire north communications shift manager Steve Smith said.
Eight fire trucks and four specialist units worked to extinguish the blaze, which spread across 200 square metres.
Police had spoken to some people in relation to the fire, Smith said.
Meanwhile, police remain at the scene of a blaze on Great Barrier Island this morning.
The fire started early this morning and reached across half a hectare, Smith said. It was under control but one truck remained at the scene.
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