The Brazilian official suspected of buying votes to bring the 2016 Olympic Games to Rio de Janeiro has been provisionally suspended by the International Olympic Committee (IOC), along with the country's national committee.
However, the IOC said in a statement Brazilian athletes would not be affected and Team Brazil would be able to take part at next year's Winter Olympics in Pyeongchang.
Carlos Arthur Nuzman, 75, was suspended as an honorary member of the IOC and withdrawn from the co-ordination commission for the 2020 Olympic Games in Tokyo.
The Brazilian Olympic Committee (COB) itself was also handed a provisional suspension as "the COB and its president, Carlos Nuzman, were responsible for the candidature of Rio de Janeiro in 2009," the IOC said in a statement.
"This decision shall not affect the Brazilian athletes," the statement added.
"The IOC will accept a Brazilian Olympic team in the Olympic Winter Games Pyeongchang 2018 and in all other competitions under the umbrella of the COB with all rights and obligations."
In a statement on Friday, COB said it would convene on October 11 at 2:30pm local time.
Rio defeated Madrid, Tokyo and Chicago that year to host the 2016 Games. Tokyo later won the right to host in 2020.
Nuzman is accused of trying to help buy the vote of Lamine Diack, the disgraced former chief of the International Association of Athletics Federations (IAAF) and an ex-IOC member, with a $2million ($A2.6million) payment via Brazilian companies.
Earlier Friday, Brazilian authorities requested Swiss assistance in looking into Nuzman. The Office of the Attorney General of Switzerland said Friday it was "currently analysing" the request to evaluate if it can be executed.
Brazilian media reported Nuzman, the organising committee head from the 2016 Games, has 16 kilograms of gold stored in Switzerland.
Nuzman was arrested Thursday, as was Leonardo Gryner, marketing chief for the Rio organising committee.
The investigation is part of an international operation called "Unfair Play" in which investigators from Brazil, France and Antigua and Barbuda are cooperating.
Nuzman, a former volleyball player, has led COB for more than two decades.
