Passengers wait for transportation after leaving the coronavirus-hit Diamond Princess cruise ship docked at Yokohama Port, south of Tokyo, Japan, February 20, 2020. A second group of about 600 Japanese and foreign passengers from the coronavirus-hit cruise ship moored near Tokyo was set to disembark on Thursday after two-weeks of on-board quarantine, as criticism of Japan's handling of the outbreak mounted. REUTERS/Kim Kyung-Hoon

Workers in protective gear escort disembarking passengers from the Diamond Princess cruise ship docked at Yokohama Port, south of Tokyo, Japan, February 20, 2020. More than 620 of the passengers on the Diamond Princess liner have been infected on the ship, which has been quarantined since Feb. 3, initially with about 3,700 people on board. REUTERS/Kim Kyung-Hoon

Passengers drag their luggages after disembarking the coronavirus-hit Diamond Princess cruise ship docked at Yokohama Port, south of Tokyo, Japan, February 20, 2020. About 500 passengers were set to disembark on Thursday while another 100 people were to leave for chartered flights home, a health ministry official said on Thursday. REUTERS/Kim Kyung-Hoon

Russian passengers walk with their luggage after leaving the coronavirus-hit Diamond Princess cruise ship docked at Yokohama Port, south of Tokyo, Japan, February 20, 2020. A second group of about 600 Japanese and foreign passengers from the coronavirus-hit cruise ship moored near Tokyo was set to disembark on Thursday after two-weeks of on-board quarantine, as criticism of Japan's handling of the outbreak mounted. REUTERS/Kim Kyung-Hoon

A passenger waves after leaving the coronavirus-hit Diamond Princess cruise ship docked at Yokohama Port, south of Tokyo, Japan, February 20, 2020. More than 620 of the passengers on the Diamond Princess liner have been infected on the ship, which has been quarantined since Feb. 3, initially with about 3,700 people on board. REUTERS/Kim Kyung-Hoon

Workers load luggage into a bus as a second group of passengers from the coronavirus-hit Diamond Princess cruise ship disembark in Yokohama Port, south of Tokyo, Japan, February 20, 2020. In the early morning of Thursday, some Hong Kong passengers went home, while Canadians were due to leave on a charter flight in the early hours of Friday (February 21), Tokyo time, a Canadian government spokeswoman said. An evacuation flight was also being arranged for British nationals to leave Tokyo on Friday. REUTERS/Kim Kyung-Hoon