Coastguard, police and Fire Emergency New Zealand crews are responding to reports of a boat on fire in Northland.
Police were called to reports of a boat on fire in Rangaunu Bay at 5.15pm on Sunday.
"It is described as being covered in white smoke," a police spokeswoman said.
At 5.55pm police said the boat had blown a head gasket. There were no reports of any injuries aboard the boat.
Police were on scene and the Coastguard was aware of the incident.