The FIFA chief Sepp Blatter has vowed to address fresh allegations of corruption against football's governing body.
The call comes after a British parliamentary committee heard evidence alleging six members of FIFA's executive committee had sought cash or honours ahead of the votes to decide the 2018 and 2022 World Cups.
British members of parliament have said they would contact Blatter demanding an investigation into the latest evidence "as a matter of urgency."
However Blatter says he could not be held responsible for the conduct of individual members.
Jack Warner, the influential head of the North and Central American federation CONCACAF, dismissed evidence given by former England 2018 bid chairman David Triesman as "a piece of nonsense."
England lost to Russia in the bid to host the 2018 World Cup while Australia was among the candidates who lost out to Qatar for the 2022 tournament.