Photo/Illutration The Tokyo metropolitan government office in the capital's Shinjuku district (Asahi Shimbun file photo)

Tokyo registered 907 new cases of the novel coronavirus on May 7, up 209 from the 698 it reported on Friday a week ago, metropolitan health officials said.

The capital's seven-day case average per day over the week through May 7 was 766.4, representing 99.1 percent of the figure for the preceding week, officials said.

Of the newly confirmed infections, 227 patients were in their 20s, followed by 189 in their 30s, 161 in their 40s and 129 in their 50s. Eighty-nine patients were 65 or older.

The number of serious COVID-19 cases requiring ventilators or an extracorporeal membrane oxygenation (ECMO) device, which circulates blood through an artificial lung, stood at 69, down three from the day before.