Nearly 400 kilograms of cannabis and 40 grams of cocaine have been seized in Auckland's Kumeu

Police arrested three people during property searches over the past week - two Vietnamese people and a gang associate.

Searches of a Station Road property, turned up 931 cannabis plants and a vast amount of manufacturing equipment.

A 27-year-old woman and a 32-year-old man are being in custody on drugs offences.

A 36-year-old man's been charged with cocaine and cannabis possession for supply.