Emergency crews are at a large house fire in Castor Bay, on Auckland's North Shore, tonight.
Firefighters were called to Beach Road shortly after 7.30pm following reports of a blaze.
Northern fire communications spokesman Jaron Phillips said they had four trucks at the scene.
The house was derelict, he said, and no injuries had been reported.
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Phillips said the house was "well involved" and firefighters were working on protecting a neighbouring property, after reports the fire was endangering it.
"But we don't believe there's any danger to homes," he said.