Prime Minister Yoshihide Suga has vowed to forge ahead with preparations to hold the Tokyo Olympics this summer in the face of growing public opposition, as Japan battles a surge in coronavirus infections.
Suga faces heightened scrutiny, after administrative and reform minister Taro Kono told Reuters last week the Games may not go ahead as planned, becoming the first cabinet member to voice doubt over their staging.
Kono's comments added fuel to the fire, after recent media polls showed almost 80 percent of Japanese believe the Olympics, already postponed by a year because of the pandemic, should be delayed again or cancelled entirely.
"We will press ahead with preparations, with determination of building watertight anti-infection measures, and holding an event that can bring hope and courage to the world," Suga has said in a policy speech at the start of a regular parliamentary session.
Japan has been less severely hit by the pandemic than many other advanced economies, but the recent surge in cases spurred it to close its borders to non-resident foreigners and declare a state of emergency in Tokyo and major cities.
Suga's support ratings have tumbled, as critics have described the Government's handling of the pandemic as too slow and inconsistent.
The latest comments echo a pledge by International Olympic Committee president Thomas Bach that the Tokyo Olympics will be a "light at the end of the tunnel" in the global pandemic fight.
Organisers face no shortage of logistical headaches, with tough decisions looming over how to welcome spectators and athletes, while safeguarding against the virus.
The IOC expects just 6000 athletes at the opening ceremony, down from an initial figure of about 11,000 from 200 nations, the Yomiuri newspaper says.
It plans to scale back the ceremony, because athletes will not be allowed to arrive at the Olympic Village more than five days before they compete and must depart within two days of completion of their events, the paper adds.
"We believe it is necessary to reconsider the number of participants at the opening and closing ceremonies, and how they will enter the stadium," the Tokyo 2020 organising committee says.
This step would ensure the safety and security of the athletes, and simplify operations, it says, while adding that a specific approach has not yet been decided in its talks with the IOC and other groups.