Authorities are searching for answers after a massive shipment of illicit drugs was found hidden inside a diesel generator at one of the country's biggest ports.
The secret stash was detected by X-ray imaging during routine inspection of the consignment, which arrived at Port Botany in Sydney from Mexico via Malaysia.
It took engineers almost three days to dismantle the heavy-duty generator and reveal an estimated 373.8kg of drugs, including 250kg of methamphetamine and more than 120kg of cocaine.
The Australian Federal Police is searching for the criminal network behind the shipment, calling for assistance from anyone who has been approached about storing or repairing a generator or selling spare parts.
AFP Acting Superintendent Stuart Kimbell said criminal networks who bring harmful drugs into the country have no regard for the devastation they wreak.