Photo/Illutration The waiting area for the Moderna COVID-19 vaccine at the office building of beverage maker Suntory. The company began its workplace vaccination program on June 21 in Tokyo. (AP Photo)

Tokyo reported 236 new cases of COVID-19 on June 21, 27 more than a week ago, along with one death.

The seven-day average of new cases of infection through June 21 came to 391.9, an increase of 3 percent of the figure for the preceding week, metropolitan health officials said.

Of the 236 new cases, patients in their 20s constituted the largest group at 79, followed by 46 in their 40s, 45 in their 30s and 30 in their 50s. Nine patients were aged 65 or older.

The three-day average of tests performed through June 20 was 4,379, according to Tokyo officials.

Serious cases requiring ventilators or an extracorporeal membrane oxygenation, an ECMO lung bypass machine, stood at 47, up two from the day before.