All 10 Chinese crew on a cargoship have denied charges of smuggling cocaine into Australia.

The Kaiyo Maru No 8 was intercepted off Tasmania in December.

It was taken to Hobart, where 185kg of cocaine was found, ABC reported.

The magistrates court was told police have still not been able to identify the owner of the ship or what flag it flies.

It ordered that the vessel be held by authorities for another 90 days.

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