More than $1 billion worth of ice has been seized from a shipment of stick-on gel bras and inside storage units filled with art supplies, in what authorities have called the largest seizure of liquid methamphetamine in Australia's history.
Four people have been charged over the importation and manufacture of 720 litres of methylamphetamine.
Authorities discovered the drugs in a shipment from Asia to Australia and found the remainder in storage units in Sydney.
The ice was allegedly hidden in stick-on 'water magic' push up bras, bottles of craft glue and painting sets.
Federal Justice Minister Michael Keenan said it was the largest seizure of liquid methamphetamine in Australia's history.
"This is also one of the largest drug seizures in our country," he said.
"This has resulted in 3.6 million individual hits of ice being taken off our streets with a street value of $1.26 billion.
"And we are here to laud the joint operation that has resulted in the largest seizure of liquid methamphetamine in Australia's history."
Australian Federal Police State Manager NSW Commander Chris Sheehan said the joint organised crime group operation began in December last year when the Australian Border Force examined a shipping container out of Hong Kong.
"That shipping container was found to contain gel bra inserts and hidden inside those gel bra inserts was 190 litres of liquid methamphetamine," he said.
Commander Sheehan said the investigation also yielded another 530 litres of liquid methamphetamine in Sydney.