Police have seized about two-million-dollars in assets and arrested six people in Hawke's Bay

Operation Dusk has targeted senior members of the Mongrel Mob over the last 18 months.

Searches over the past three days have also targeted organised crime groups including the Black Power and Outlaw gangs.

Police have seized five residential addresses and 15 vehicles, including a 2020 Range Rover and a digger.

Guns, ammunition, illicit drugs and large quantities of cash were also recovered.

The six, three men and three women, face serious drugs and firearms charges.