SYDNEY, Australia - Two Canadian-Vietnamese dual citizens have been charged with smuggling heroin and methamphetamine worth 75 million Australian dollars ($68 million) hidden in a consignment of frozen fish fillets shipped from Kuala Lumpur to Sydney.

A law enforcement statement said on Monday the men, aged 57 and 55, appeared in a Sydney court on Friday last week on multiple charges related to the shipment of 88 kilograms (194 pounds) of heroin and 21 kilograms (46 pounds) of methamphetamine. They face life in prison if convicted.

Officials found that ice packs hidden beneath the fish intercepted on the Sydney waterfront law week were filled with liquid forms of the illicit drugs.

The drugs were replaced with harmless substances before the men took delivery and were arrested in western Sydney.