<p>Tokyo Governor Yuriko Koike said on Thursday that the number of new Covid-19 cases among younger people are on the rise and called on residents to further curtail their movements.</p>.<p>Mutant strains of the virus are becoming dominant, and fears are growing that the current surge could exceed the third wave that crested in January, Koike said at a meeting of health experts.</p>.<p>Tokyo plans to ask the central government on Thursday to extend the current state of emergency, local media reported, citing unnamed officials.</p>
<p>Tokyo Governor Yuriko Koike said on Thursday that the number of new Covid-19 cases among younger people are on the rise and called on residents to further curtail their movements.</p>.<p>Mutant strains of the virus are becoming dominant, and fears are growing that the current surge could exceed the third wave that crested in January, Koike said at a meeting of health experts.</p>.<p>Tokyo plans to ask the central government on Thursday to extend the current state of emergency, local media reported, citing unnamed officials.</p>