Tokyo 2020 Olympic organizers and Tokyo Gov. Yuriko Koike on Saturday vowed not to leave unused "white elephant" venues to the taxpayer after the Games have finished.

"The citizens of Tokyo are the taxpayers, and we must have their understanding in whatever we do," said Koike, who was elected governor on Aug. 1 and is currently in Rio de Janeiro preparing to accept the Olympic flag on Tokyo's behalf at the 2016 Games closing ceremony Sunday.

"Before I became governor, there must have been certain procedures that went into the cost calculations and I would like to speak to 2020 organizers and the national government about that. I will not leave white elephants to the taxpayers. I will leave a good legacy. That is the direction I want to see the games take."