Three vehicles, two belonging to one owner, were set alight in the same Whangarei street and has sparked a police investigation.
Emergency services were called to Paranui Valley Rd in Tikipunga on Friday at 11.45pm.
Whangarei police Sergeant Ryan Gray said an argument took place on the street about 11.30pm, and a short time later the vehicles, which were parked on the side of the road, were set alight.
Fire and emergency shift manager Daniel Nicholson said one fire appliance from Whangarei station went to the street and the cars were attended the scene and found the cars well involved.
The crew extinguished the fires before leaving the scene in the hands of police.