Officials of the Tokyo Metropolitan Government say a record-high 286 new cases of coronavirus infection were confirmed in the Japanese capital on Thursday.
The figure exceeds the past daily high of 243 cases reported on July 10.
The total number of infections in Tokyo now stands at 8,640.
The metropolitan government is calling on residents to refrain from nonessential travel outside the capital even if they have no symptoms.
It is also urging businesses to take thorough steps to prevent infection by following the guidelines.