Photo/Illutration The Tokyo metropolitan government building in Shinjuku Ward, the command center for the capital's response to the COVID-19 pandemic. (Asahi Shimbun file photo)

Tokyo reported 276 new cases of the novel coronavirus on Sept. 10, topping 200 for the first time in seven days.

The count last exceeded 200 on Sept. 3, when 211 new cases were logged.

Most new patients reported on Sept. 10 were in their 30s, accounting for 71 new infections.

Fifty-seven patients in their 40s tested positive for the virus, along with 56 in their 20s, and 38 in their 50s.

Twenty-three people in their 60s were also confirmed infected, 20 in their 70s or older and 11 under age 20.

The capital's number of virus patients designated as serious cases stood at 23, down one from the previous day.

The Tokyo metropolitan government defines serious cases as patients on a ventilator or extracorporeal membrane oxygenation, also known as an ECMO lung bypass machine.