One member of Uganda's Olympic team tested positive for COVID-19 at an airport screening in Japan, NHK reported on Sunday.
The nine-member team arrived at Narita Airport near Tokyo on Saturday at around 6 p.m.
Athletes and staff were vaccinated before arriving in Japan and had tested negative 72 hours before departure, NHK said.
That individual is staying at a government-designated facility, while the others traveled on to their host city in Osaka, where they will hold their training camp, NHK said.
The Uganda team is the second group of foreign athletes to arrive for the Tokyo 2020 Summer Games, following the arrival of the Australian women's softball squad on June 1.
(With input from Reuters)