The American Embassy in Tokyo said Saturday that the U.S. government will send a chartered aircraft to evacuate its citizens from the virus-hit Diamond Princess cruise ship — where 67 more infections were reported Saturday — presently quarantined in Yokohama.

Passengers and crew members have been complaining about deteriorating sanitary conditions. They said there has been no cleaning services onboard and that bedsheets have not been changed for several days.

With global attention increasingly focused on the situation on the cruise ship, the U.S. Embassy sent a letter Saturday to Americans on the ship that says the chartered aircraft will arrive in Japan on Sunday evening and buses will pick up the passengers and their belongings and take them to the airport.