Preparations for the 2020 Olympic Games were set back again when the governor of Tokyo submitted his resignation on Wednesday, ending a weeks-long bid to stay in power.
Yoichi Masuzoe had come under intense questioning in the Tokyo Metropolitan Assembly for allegedly using political funds for personal purposes. Japanese media reported the resignation would take effect June 21.
Masuzoe had been scheduled to attend the Rio opening ceremony in August, and would have accepted the Olympic flag during a handover at the closing ceremony.
Preparations for the 2020 Games have been plagued by a series of scandals involving the new national stadium, the official logo and allegations of bribery in the bidding process.
Masuzoe, a former health minister backed by Japan's ruling party, easily won an election in February 2014, and promised a successful 2020 Olympics.
He baulked at the high cost of the Games, and successfully lobbied to have some events moved to existing facilities instead of building costly new venues in Tokyo.
Masuzoe could speak English and French and was considered by many as an asset for the preparations.
"He had a strong emotional attachment to the Games and spoke passionately about making them a success," Yuko Arakida, a member of the organising committee's executive board, was quoted as saying by the Kyodo news agency. "Because of his foreign language proficiency, he brought social skills. It is extremely regrettable."
Masuzoe's troubles began earlier this year with revelations he had stayed in expensive hotel suites at taxpayer expense on work trips to Europe and the United States, and used his official vehicle to travel regularly to a weekend retreat.
The first design of the new national stadium was scrapped over ballooning costs, putting construction of the new facility behind schedule. The original official Games logo was also ditched over allegations of plagiarism.
Leaders of Tokyo's winning bid have admitted making payments of 2.8 million Singapore dollars ($A2.72 million) to a Singaporean firm headed by Ian Tan Tong Han, a close associate of Papa Massata Diack, the son of former IAAF president Lamine Diack, who is facing corruption charges in France.
Japan's Olympic committee president Tsunekazu Takeda, who headed Tokyo's 2020 bid team, insists the payment was for legitimate consultancy work and not made with the anticipation that the money would lead to Diack.
