Tokyo confirmed 26 new COVID-19 cases on Saturday, marking a three-day streak of at least 20, metropolitan government officials said.
The capital is in the midst of renewed concern that it may be seeing a possible resurgence of infections after the state of emergency was lifted across the nation on May 25.
With Saturday's cases, the total number of infections in Tokyo stands at 5,369, according to metropolitan government data.
Gov. Yuriko Koike has issued a so-called Tokyo Alert, asking residents to keep vigilance against infection risks.
Many of the recent cases have been reported from nightlife spots — hostess bars and host clubs where close contact is unavoidable — in Shinjuku's adult entertainment district.