The Tokyo Olympic organizing committee has been preparing various scenarios for this year's Summer Games due to the uncertainty caused by the coronavirus pandemic, including holding events without spectators, its president said Thursday.

"We have been doing all kinds of simulations. Basically, I don't think (the games without fans) is something that would happen or something that I would like to do, but it won't be a simulation unless we think about it," Yoshiro Mori told reporters after holding a remote meeting with International Olympic Committee chief Thomas Bach.

Despite the outlook for the pandemic still being unpredictable, Mori and Prime Minister Yoshihide Suga have insisted that Japan will host a "safe and secure" Olympics in six months by implementing numerous anti-virus measures to protect the health of those involved.