Malaysian authorities said they have seized a container of African elephant tusks, pangolin scales and other animal skulls and bones estimated to be worth 80 million ringgit (£15 million).
The customs department said it discovered the contraband hidden behind sawn timber following checks on July 10 on a ship coming from Africa.
This included 13,227lbs (6,000kg) of elephant tusks, 220lbs (100kg) of pangolin scales, 55lbs (25kg) of rhino horns and 661lbs (300kg) of animal skulls, bones and horns, it said.
Investigations were ongoing into the importer and shipping agent, the department said without providing further details.
It was unclear if the container was meant to be shipped to other parts of Asia.
Ivory tusks, rhino horns and pangolin scales are believed to have medicinal properties and are in high demand in the region.