Tokyo Olympics chief commits to Games as infections surge; fresh calls to postpone or cancel

The Rainbow Bridge and Tokyo Tower are illuminated with Olympic colours to mark 100 days countdown to the Tokyo 2020 Olympics that have been postponed to 2021 due to the coronavirus disease (COVID-19) outbreak, in Tokyo, Japan April 14, 2021. REUTERS/Issei Kato

TOKYO (Reuters) -Tokyo's Olympics chief said on Friday that Japan was committed to holding a safe Games this summer, as a surge in COVID-19 cases prompted an expansion of contagion controls and with fresh calls for the Games to again be postponed or cancelled.

The government expanded quasi-emergency measures to 10 regions as a fourth wave of infections spread, casting more doubt on whether the Olympics can be held in Tokyo in fewer than 100 days.