The Tokyo metropolitan government reported 673 new daily coronavirus cases Thursday, following 714 the previous day, amid a resurgence of infections in the capital with less than a month to go before the Olympics.

Tokyo's seven-day rolling average of infections per day came to 523.1, topping the 500 mark for the second straight day and hitting Stage 4, the worst level on the government's four-point scale.

The recent rebound in infections has fanned public concern about holding the global sporting event with spectators.