Qatar World Cup organisers insist the crisis at FIFA will not affect their preparations for the tournament in 2022.
Fresh reports have stated that the FBI are including the bidding process for the 2018 and 2022 World Cups in the scope of their wider investigations into FIFA, and that Sepp Blatter -- who announced on Tuesday he is to step down as FIFA president days after winning re-election -- is also being investigated.
The U.S. Justice Department has indicted 14 people on corruption charges, but the charges are unrelated to the two tournaments.
A statement from Qatar's Supreme Committee for Delivery & Legacy said: "The recent events at FIFA will not impact on our preparations for the 2022 FIFA World Cup. With five stadiums currently under construction we are ahead of schedule to deliver on our promises.
"Qatar has faced criticism from the moment we won the right to bring this tournament to the Middle East for the first time. We remain committed to using the World Cup as a platform to break down prejudice and misconceptions, while leaving a lasting legacy for our country and the rest of the region."
The Russia 2018 local organising committee issued a statement on Wednesday afternoon in which it praised Blatter for his "enormous contribution" to football at all levels.
It read: "The LOC Russia 2018 highly respects FIFA president Joseph S Blatter for his decision to lay down his mandate at the helm of FIFA, which he has been heading for almost two decades.
"We appreciate the enormous contribution that president Blatter has made to the development of football as head of FIFA at all levels -- from grass-root development work to the pinnacle, which is the FIFA World Cup.
"In 2018 the FIFA World Cup will be held for the first time on the territory of the world's largest country. The Russia 2018 LOC will continue to work closely with FIFA towards this goal on a daily basis."