A total of 4,058 new cases of coronavirus have been reported in Tokyo, a daily record, city hall said Saturday, fanning worries as Japan's capital plays host to the Olympic Games.
Critics have long said the Olympics should be cancelled or postponed, as tens of thousands of athletes, corporate sponsors and media gathered from around the world.
Athletes are getting tested for the coronavirus every day. Twenty-one people working at the Olympics tested positive Saturday, none of them athletes.
The Games have had 241 positive tests so far, 23 of them athletes.
Japan has had more than 15,000 deaths related to COVID-19. Daily reported cases also reached records in Saitama, Chiba and Kanagawa prefectures, neighbouring Tokyo.