FIFA rejected allegations on Friday by the former head of England's World Cup bid that Russia was planning to bribe referees at this summer's tournament in exchange for Spain pulling out of the running to host the 2018 competition.
Lord Triesman resigned as England's 2018 World Cup bid chairman after his comments, which were recorded in secret by a former employee, were published in a British newspaper.
FIFA said it had "found no indication that there is any basis to the allegations reported".
World football's governing body also reminded bid teams that they should display the "highest standards of ethical behavior".
The English FA wrote letters of apology to both the Spanish and Russian football associations after the incident.
In his defence, Triesman said his claims were "never intended to be taken seriously".
Russia is competing with England, Australia, the United States, Spain and Portugal and Belgium and the Netherlands to host the World Cup in 2018.
FIFA will appoint hosts for the 2018 and 2022 World Cups on December 2.
MOSCOW, May 28 (RIA Novosti)
