Photo/Illutration People wearing face masks to help curb the spread of the coronavirus wait before crossing an intersection in the Ginza shopping district in Tokyo on Dec. 22. (AP Photo)

Tokyo confirmed 563 new COVID-19 cases on Dec. 22, the most for a Tuesday, and reported 64 patients in serious condition, according to metropolitan government officials.

The officials said the number of serious cases requiring ventilators or extracorporeal membrane oxygenation, also known as an ECMO lung bypass machine, rose by one from the previous day.

Fewer new infections are usually reported on Mondays and Tuesdays because the numbers reflect cases from about three days earlier, close to the weekend, when fewer people tend to be tested for the novel coronavirus.

The record number of cases in the capital for a Tuesday followed the 392 reported in the capital on Dec. 21, a record high for a Monday.

Of the 563 cases, 133 patients were in their 20s, followed by 120 in their 30s, 96 in their 40s and 77 in their 50s. Sixty-five patients were 65 or older.