SYDNEY - Australian police have arrested six men from China's Taiwan on Friday in Perth in a record-breaking drug bust involving 90 kg of methamphetamine worth 63 million Australian dollars ($55 million dollars).

The joint investigation by Western Australian and federal police, Australian Crime Commission, and the Australian Customs and Border Protection Service began in July after 117 kg of methamphetamine, or ice, was seized from a Melbourne apartment.

Four Taiwanese men were arrested in that raid and information led investigators to Perth, where authorities uncovered what they believe is a South-East Asia-based trafficking racket.

Two 25-year-olds, two 27-year-olds, a 24-year-old and a 20-year- old, all males, were charged with trafficking offences.

It is the biggest ever methamphetamine seizure in Western Australia.

AFP commander Matt Rippon told reporters that those arrested in Melbourne and Perth are a part of a well-established international criminal syndicate targeting Australia.

The six men will appear in Perth Magistrates Court later on Friday.

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