Photo/Illutration Central Tokyo in June 2019 (Asahi Shimbun file photo)

Tokyo confirmed 249 new novel coronavirus infections on April 5, 15 more than the previous Monday, according to metropolitan health officials.

The number of cases reported on Mondays tend to be lower than other days of the week because they reflect infections confirmed about three days earlier, close to the weekend, when fewer tests are given. 

The seven-day case average per day over the week through April 5 for the capital stood at 391.9, an increase of 9.6 percent over the previous week, records show.

Of the newly confirmed infections, 79 patients were in their 20s, followed by 51 in their 30s and 31 in their 40s. Twenty-five patients were aged 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 46, one fewer than the day before.