Photo/Illutration People on a pedestrian crossing Nov. 25 in Tokyo (AP Photo)

The Tokyo metropolitan government confirmed 67 serious cases of COVID-19 on Nov. 28, the highest number since a state of emergency for the novel coronavirus pandemic was lifted in May.

The overall 561 people infected with the new coronavirus on Nov. 28 fell just shy of the record 570 of the previous day.

The 67 patients classified as having severe symptoms require the use of a ventilator or an extracorporeal membrane oxygenation (ECMO) device, which circulates blood through an artificial lung. The figure is an increase of six from the previous day.

The high number of total new cases on Nov. 28 reflects the 7,766 people who took polymerase chain reaction and other tests on Nov. 25. It normally takes metropolitan government officials about three days to confirm and compile test results.

Of the latest cases, 132 patients were in their 20s, while 102 were in their 30s, 90 in their 40s and 83 in their 50s.

Eighty-two of the patients were 65 or older.