Northern Asset Recovery Unit Detective Senior Sergeant Eddie Evans said this was a continuation of the significant work Police are undertaking, in conjunction with Operation Cobalt, to shed light on the activities of a transnational organised crime group operating in New Zealand.
"Police are committed to holding those who accumulate assets and wealth through illegal means to account," Evans said.
"This is a significant restraint of millions of dollars' worth of vehicles, property and cash which highlights the ongoing work by Police to disrupt and dismantle this type of damaging offending in our country."
As the investigation remains ongoing, police said they couldn't rule out further arrests and charges being laid in relation to this operation.