Japanese prefectures Osaka, Hyogo, and Miyagi are strengthening their Covid-19 measures amid a rise in cases in the country, public broadcaster NHK reported.
The restrictions, which are set to last one month, include asking bars and restaurants to close by 8 p.m. and will prevent entry to customers without a mask.
Osaka prefecture is set to hold the Tokyo Olympic torch relay on April 14, but organizers are asking for the event to be moved because of the rise in cases, NHK reported.
Osaka Gov. Yoshimura Hirofumi told reporters on Monday the torch relay will not be held on public roads and is still looking into the possibility of alternative sites for the event.
Japan's Prime Minister Yoshihide Suga said Monday the rise in coronavirus cases has not yet reached the level of a nationwide fourth wave, but extra vigilance is required.
Japan's Health Ministry reported 1,554 new infections on Monday. The overall total number of confirmed cases in the country now stands at 485,797 and the death toll at 9,259. Tokyo reported 249 cases on Monday, according to its government site.
Japan's rise in cases come four months ahead of the Olympics, set to start July 23 in Tokyo. North Korea has reportedly decided drop out of the Games due to concerns its athletes could contract the virus.