A clash between armed motorists and occupants of a Kaitāia property led Northland police to uncover $88k in cash, methamphetamine, and a firearm.
Two Black Power gang members were arrested alongside six other people in Kaitāia on Sunday after a heated confrontation on Allen Bell Dr drew the attention of police.
Officers happened upon the skirmish shortly before 8am as they drove nearby.
Northland District Organised Crime coordinator Detective Senior Sergeant Kevan Verry said the "altercation" was between "a group of people in a vehicle armed with weapons and the occupants of a nearby premise".
Police searched the vehicle and discovered a single-barrelled shotgun.