International Olympic Committee President Thomas Bach said Thursday there was "zero" risk of games participants infecting Japanese residents with COVID-19, as cases hit a six-month high in the host city.

"Risk for the other residents of Olympic village and risk for the Japanese people is zero," Bach said, adding that Olympics athletes and delegations have undergone more than 8,000 coronavirus tests, resulting in three positive cases.

Those cases have been placed in isolation and their close contacts are also under quarantine protocols, Bach said at the beginning of talks with Tokyo Gov. Yuriko Koike and Tokyo 2020 President Seiko Hashimoto.