The Tokyo metropolitan government says it confirmed 57 new cases of the coronavirus infections on Saturday in the Japanese capital.
The figure is the highest single-day count since the state of emergency was lifted on May 25. Saturday also marked the second straight day that the daily number in the capital has topped 50.
The number of people in Tokyo who have tested positive now stands at 6,054.
Forty one of the newly confirmed cases are people in their 20s and 30s, accounting for around 70 percent of the total.
Twenty one are known to have been in close contact with coronavirus carriers, while transmission routes remain unknown for the remaining 36.