Cancelling the rescheduled Tokyo Olympics remains an option, according to a top official from Japan's ruling Liberal Democratic Party (LDP).
The Games, which were postponed last year amid the coronavirus pandemic, are set to take place between July 23 and August 8, with the Paralympics following from August 24 until September 5.
The health crisis continues to cause issues for nations across the globe but the message from the International Olympics Committee (IOC) and from the Tokyo 2020 Organising Committee has thus far been that the show will go on.
International fans are banned from attending, and social-distancing measures, track-and-trace systems and temperature checks will be enforced.
With experts in Japan warning the country has entered a fourth wave of COVID-19 infections, the secretary general of the LDP, Toshihiro Nikai, said cancelling the Games remains a possibility.
"If it seems impossible to go on with the games, they must be definitely cancelled," Nikai told TBS TV.
"If there is a surge in infections because of the Olympics, there will be no meaning to having the Olympics."
Asked if cancellation was still an option, he added: "Of course."
A recent poll conducted by Japanese news agency Kyodo News revealed that 39.2 per cent of respondents want the Games to be cancelled, with 32.8 per cent in favour of it being delayed again.