Japan extended on May 7 a state of emergency in Tokyo and three other areas until the end of May to stem a surge in coronavirus cases, but Prime Minister Yoshihide Suga reiterated that it is still possible to host the Tokyo Olympics this summer.

Japan’s government is considering a state of emergency for Tokyo and Osaka as new Covid-19 case numbers surge, broadcaster NHK reported on Wednesday, a move that would enable prefectural authorities to impose curbs to try to stop infections spreading.

Japanese health authorities are concerned that variants of the coronavirus are driving a nascent fourth wave in the pandemic with just 109 days remaining until the Tokyo Olympics.

Japan’s Covid-19 cases reached a new daily record on Jan. 6, as the government faced mounting pressure from health experts to impose a strict state of emergency for the Tokyo greater metropolitan area.