The head of the Tokyo Olympics organising committee has apologised and said he may need to resign after making sexist comments, local media report.
Yoshiro Mori, 83, said he regretted the "thoughtless" remarks, Japan's Mainichi newspaper reports.
Mori was earlier quoted as saying women talk too much and that meetings with many female board directors would "take a lot of time".
He was speaking at Wednesday's meeting of the Japanese Olympic Committee.
The committee board currently has 24 members, five of whom are women.
In 2019, the committee - which is responsible for selecting Japanese Olympians - set itself a goal of increasing the number of female board directors to 40%.
"If we increase the number of female board members, we have to make sure their speaking time is restricted somewhat, they have difficulty finishing, which is annoying," Mr Mori was quoted as saying by the Asahi Shimbun newspaper.
"We have about seven women at the organising committee but everyone understands their place," he said.
Mori, who was prime minister of Japan in 2000-01, is well-known in the country for a string of gaffes and undiplomatic comments he made while in office.
His latest comments triggered anger on social media, with the hashtag #Moriresign trending on Twitter.
"Shame. It's time, get out," one user tweeted, while another urged athletes to boycott the Games if the Mori kept his job.
On Thursday, the 2020 Games chief told the Mainichi that female family members had also lambasted him.
"Last night, my wife gave me a thorough scolding. She said: 'You've said something bad again, haven't you? I'm going to have to suffer again because you've antagonised women,'" he said.
"This morning, my daughter and granddaughter scolded me as well," the paper quoted him as saying.
The Tokyo Olympics organising committee - which has 36 executive board members - is tasked with "ensuring the successful delivery of the Olympic and Paralympic Games", which have been delayed by a year because of the coronavirus outbreak.
The committee takes its members from various organisations including the Japanese Olympic and Paralympic Committees, the Tokyo metropolitan government, and Japan's national government.
(BBC)