Photo/Illutration An electron microscope image of the new coronavirus isolated by the National Institute of Infectious Diseases (Provided by the National Institute of Infectious Diseases)

New cases of COVID-19 infection continued to rise in Tokyo with 48 confirmed reports on June 15, up from 47 the day before and fueling further criticism that authorities in the capital prematurely lifted an alert for continued vigilance.

Of the 48 new infections, 22 were linked to a night club and similar venues, including 20 at an establishment where a cluster infection was reported earlier, health officials said.

The metropolitan government issued a “Tokyo alert” June 2 for residents to remain vigilant against the pandemic following the lifting of the state of emergency for the capital on May 25.

The metropolitan government lifted the alert on June 11, despite signs of an uptick, leading to concerns that the decision was taken way too early.

But Tokyo Governor Yuriko Koike defended the action, stating that the health care system in the capital is well equipped to deal with an increase in COVID-19 patients.