The coronavirus countermeasure costs will include the setting up of health care infrastructure, including a testing system, and procuring the necessary equipment for infection prevention.

Additional operating costs from the one-year postponement are expected to include expenses related to securing games venues, equipment rental and storage fees, and expenditures on labor.

The games were expected to cost around 1.35 trillion yen before they were postponed in March, just four months before the Olympic opening ceremony was slated to be held in the Japanese capital.

The organizing committee has since striven to simplify the games and cut spending wherever possible to make holding the Olympics and Paralympics in 2021 more palatable to the Japanese public.

Last month, organizers announced their simplified plan will save an estimated 30 billion yen after agreeing with the International Olympic Committee on 52 areas that could be streamlined.

The sources said the cost of coronavirus countermeasures will be largely shouldered by the national government as they plan for visiting athletes, stakeholders and spectators.

The Olympics are scheduled to be held between July 23 and Aug. 8 next year, followed by the Paralympics from Aug. 24 to Sept. 5.