The first case of COVID-19 at the athletes' village was reported on Saturday, along with 14 other new cases connected to the Games that begin next week, raising fresh doubts over promises of a "safe and secure" event, according to Tokyo Olympics organisers.
The recent COVID-19 cases are a setback for the local organisers and the International Olympic Committee, both of whom have stated that the Games would not become a super-spreader event.
A visitor from another country working for the Olympics tested positive in a routine screening on Friday, according to the Tokyo organisers. Due to privacy concerns, the person's country was not pulged.
Two members of the media, seven contractors, and five Games personnel were among the others.
The situation at the athletes' village, a 44-hectare facility built on Tokyo's waterfront, is particularly concerning, as it will be home to the majority of the 11,000 participants.