The United States track and field team have cancelled their pre-Olympic training camp in Japan because of concerns over the coronavirus pandemic.
Host city Tokyo is under a state of emergency amid a surge in cases, 10 weeks from the start of the Games on July 23.
American athletes were due to train in nearby Chiba and the local government said “concerns for their athletes’ safety” led to the cancellation.
The news comes a day after Japanese tennis player Naomi Osaka said she was “not really sure” whether the rescheduled Olympics should go ahead this summer.