Up to $1 million worth of methamphetamine is believed to have been imported into Nelson and Dunedin by an organised crime group.
Two women have been arrested following a joint operation between the Dunedin Police Organised Crime Squad and Customs targeting the group.
A search warrant was carried out in Dunedin on December 7 and two women, aged 40 and 28, are facing multiple charges of importation of a class A drug, conspiracy to deal methamphetamine and supply methamphetamine.
The group targeted during the operation is believed to have imported between $795,000 to $1,000,000 worth of methamphetamine into Nelson and Dunedin.
Detective Senior Sergeant John Fergusson said this level of importation was a major concern because the use of methamphetamine had no positive outcomes.