Tokyo confirmed 4,561 new cases of infection with the novel coronavirus on Saturday, up 3,337 from seven days before and exceeding 4,000 for the second consecutive day.
Osaka Prefecture logged a record 3,692 new cases on the day, surpassing the previous record of 3,004 set on Sept. 1 last year.
Okinawa Prefecture also confirmed a record 1,829 new cases, topping the 1,817 cases reported on Thursday.