Police believe the $3 million haul of cocaine found washed up on Bethells Beach in West Auckland was likely destined for Australia.
Waitemata Police Detective Inspector Colin Parmenter said packages of cocaine washed up in recent days were likely to have been among hundreds of kilograms of the drug destined for Australia last year.
Police were called to the beach on Wednesday evening, where they found 20 packages of cocaine, with a rough street value of more than $3 million.
"In August 2018, a rigid inflatable boat was seen by Australian Border Force and Defence patrols off the northern New South Wales coast heading towards the mainland, and authorities were sent to intercept it," Parmenter said.
"The two occupants of the inflatable were seen offloading the cocaine into the sea, and they were arrested."