A bid to import $283 million worth of methamphetamine into Australia has been thwarted with four Melbourne men charged over their alleged involvement.
Australian Federal Police officers charged the group after 306 kilograms of the drug were located concealed in a six-tonne hydraulic press.
Australian Border Force officers found the drugs in June during a search of a consignment sent from the United States.
AFP Commander Raegan Stewart is expected to share more detail on the bust on Monday morning.
It follows a near $1 billion methamphetamine shipment seized from two large machines a shipping container at Sydney's Port Botany in July.
That shipment was also sourced from the United States before authorities removed the drugs and delivered the machines to a premises at Warwick Farm, in the city's west, leading to the arrest of two men.