Photo/Illutration Tokyo Governor Yuriko Koike attends a Dec. 17 meeting of the metropolitan government’s expert panel monitoring the spread of COVID-19. (Rihito Karube)

Fresh COVID-19 cases dropped sharply in Tokyo on Dec. 21, but still reached a record 392 for a Monday, metropolitan government officials said.

Sixty-three patients were deemed to be in a serious condition.

Fewer new infections are usually confirmed on Mondays rather than other days of the week 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.

Officials said the number of serious cases requiring ventilators or extracorporeal membrane oxygenation, also known as an ECMO lung bypass machine, dropped by three from the previous day.

But overall, new infections are continuing to rise in the capital with a daily average of 603 new cases over the week until Dec. 20, when the figure topped 600 for the first time.