Sydney - Australian police seized about A$180-million ($160-million) worth of methamphetamine hidden inside kayaks shipped from China, officials said on Wednesday.

Five people were arrested in Sydney on Tuesday after customs officials discovered 180kg of meth last week while inspecting a shipment of kayaks from China, the Australian Federal Police said.

Nineteen of 27 kayaks in the shipment had bags of meth stuffed inside the watertight areas of the boats, said Tim Fitzgerald, regional director for the Australian Customs and Border Protection Service.

Four of the five people arrested are from Taiwan, and one is from Sydney.

Two were charged with attempting to import drugs, and the others were charged with possessing a commercial quantity of drugs. They each face a maximum of life in prison if convicted.

Australian officials have made a series of major drug busts in recent months. In October, police seized about A$200-million worth of meth hidden in the tyres of a truck shipped from China.