Two British nationals in Auckland have been busted with more than 200kg of methamphetamine - worth about $144 million on the street market.
Detective Inspector Paul Newman said a major drug operation dubbed Operation Essex had targeted members of an overseas criminal organisation working in New Zealand.
Police arrested a 60-year-old British man at an apartment complex in central Auckland after allegedly finding methamphetamine stowed away in 11 boxes in a wardrobe.
He was charged with possession of methamphetamine for supply and has been remanded in custody without plea. He will next appear in the Auckland District Court.
Police allege a second man, 49, was aiding him, Newman said.
"We found the second male at the airport trying to flee the country."
He also has been charged with possession of methamphetamine for supply and remanded in custody. He will next appear in the Manukau District Court.
Newman said police were making inquiries with law enforcement agencies abroad "to try and work out the threat that this syndicate poses to New Zealand".