Norwegian Jewel is placed into lockdown in Sydney Harbour

(MSN)- A cruise ship has been placed into lockdown in Sydney Harbour over fears a passenger may have coronavirus (COVID-19).

The passenger, a Singaporean man, is being tested for the deadly virus after he became unwell and was suffering from respiratory illness.

The ship, Norwegian Jewel, arrived in Sydney on Friday morning after a 10-day tour of New Zealand.

Australia currently has 15 confirmed cases of coronavirus while four Australians are among 65 newly-confirmed cases aboard the quarantined Diamond Princess cruise ship docked at Yokohama in Japan.

Saturday will mark two weeks since Prime Minister Scott Morrison announced a temporary 14 day ban on foreign travellers who have left or passed through mainland China from arriving on our shores.