A member of the Ugandan Olympic team tested positive for the coronavirus after arriving at Narita Airport on Saturday night in the first known case of COVID-19 among athletes traveling from abroad.

The discovery comes just over a month before the opening ceremony and amid concerns of another spike in infections once the games begin on July 23. A state of emergency in nine prefectures, including Tokyo, will be lifted Monday.

Eight Ugandan coaches and athletes, who will compete in boxing, weightlifting, and swimming events, were allowed to enter Japan after testing negative. They boarded a bus for the city of Izumisano, next to Osaka's Kansai Airport. Izumisano is serving as a pre-Olympic training location and host town for the delegation until July 19. The government indicated the athlete who tested positive can be admitted to the country and travel after testing negative.