Pressure for action over the allegations grew however as UEFA president Michel Platini said a new vote on the 2022 host should be called if corruption was proved.
Britain's Sunday Times set off a new controversy this week when it alleged that former Qatari football chief Mohamed bin Hammam paid more than $5 million to win support for Qatar's bid.
Sheikh Ahmad al-Sabah, president of the Olympic Council of Asia and the Association of National Olympic Committees, strongly defended Qatar though.
"We will confront all such acts of racism and we will stand with Qatar so that no-one removes its right to organise the 2022 World Cup in Doha," he added.
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"I stand by my brothers in Qatar," the sheikh declared.
A FIFA investigator, US lawyer Michael Garcia, met Qatari World Cup committee officials in Oman this week, a source close to the meetings said.
The first talks were yesterday and were to wrap up on today, the source told AFP.
He is to hand his report to a FIFA ethics committee on June 9, the day before the world body starts its annual congress in Sao Paulo.
UEFA President and FIFA executive member Michel Platini, who voted for Qatar in 2010, told L'Equipe newspaper that if the corruption allegations were proven there should be a re-vote.
"If there is proof of corruption, it will take a new vote and sanctions," Platini was quoted as saying.
He admitted attending a "private lunch" with Nicolas Sarkozy when he was France's president, and a group of high-ranking Qataris.