The operator of a cruise ship hit by the coronavirus outbreak says it will refund passengers of the doomed voyage of the vessel now docked at Yokohama Port.

The Diamond Princess operator's website says it will refund cruise fees as well as the costs of transportation, including planes and trains, and hotels used before and after the voyage.

Japan's health ministry says six more people on a cruise ship quarantined near Tokyo have tested positive for the new coronavirus, bringing the total number to 70.

Ministry officials told reporters on Sunday that their latest tests on the Diamond Princess covered 57 people, and found that one passenger and five crewmembers have contracted the virus.

Japan's health ministry says six more people on a cruise ship quarantined near Tokyo are infected with the new coronavirus.

The number of cases found on the Diamond Princess has risen to 70, excluding a Hong Kong man who tested positive for the virus after he disembarked.