Australia's Biggest Ever Cocaine Bust

Australian Federal Police have pulled off the largest cocaine bust in Australia's history, seizing more than $312 million worth of the drug.

A transnational drug syndicate used a yacht to sail to a "mother ship" waiting in international waters before AFP officers seized the record haul of 1.4 tonnes of cocaine

The drugs were seized from the yacht Elakha off the NSW south coast on Thursday night.

New Zealand customs had been tracking the Elakha for four years and shared intelligence with their Australian counterparts in an "Anzac-spirited" operation.

The yacht travelled from New Zealand to the "mother ship" in the south Pacific Ocean and was then intercepted 370km off the coast, AFP Acting Deputy Commissioner Neil Gaughan said on Monday.

A 63-year-old New Zealand Man and a 54-year-old dual national of Swiss-Fijian origin were on board with the massive drug stash, authorities say.

The following morning four other men - a 66-year-old, two 62-year-olds and a 32 -year-old - were also arrested in Sydney and on the south coast.

They're accused of planning to meet the yacht and bring the drugs ashore in NSW.

The men face maximum sentences of life imprisonment.

"This syndicate was intending to bring significant misery to the Australian community," Mr Gaughan said in Sydney.

"Any organised crime syndicate that believes they're going to get away with it, sooner or later they're going to get caught. You take the risk."

Federal Justice Minister Michael Keenan expects the bust to drive up the street price of cocaine in Australia - which was already relatively high.

"Clearly this is an enormous blow to supply of illicit drugs in Australia, particularly cocaine," Mr Keenan told reporters.

Three of the men were due to face Sydney's Central Local Court on Monday while the three others will appear on Wednesday.

- AAP