On Thursday, CSKA also said it was "surprised and disappointed" about Toure's statements, and added that it hadn't found any such chants after checking the video recording of the game, saying that the fans were booing some of the players during the game irrespective of their ethnicity.
"It's unclear what made the Ivorian midfielder think that it was directed against him," CSKA said.
Bobby Barnes, Europe's top official in the international players' union, said Thursday that the match officials failed to carry out their own protocol.
Toure said he told referee Ovidiu Hategan about the racist chants, expecting that he would speak to the safety officer who should warn the fans that the game will be stopped if the chants didn't end.
"I would certainly hope in line with the hard line stance that UEFA has stated and intends to use in these circumstances they will make a meaningful sanction in this case," Barnes said in a story posted on the FIFPro website. "It's important we send a message now.'
UEFA has decided recently that racist chants should involve a partial stadium closure for the first offense and a full stadium closure for repeat offenders. Three clubs this season have had full stadium bans for racism and five had had partial closures.
Previously in Russia, Lokomotiv Moscow fans held up a banner in 2010 thanking an English team for signing their black striker Peter Odemwingie with a picture of a banana. The head of Russia's World Cup bid awkwardly said it wasn't racism but rather an innocent reference to a colloquial expression meaning a student failure at an exam.
Last year, fans of Zenit St. Petersburg called for non-white and gay players to be excluded from the team. Landscrona, the largest Zenit supporters' club, said in a manifesto that "dark-skinned players are all but forced down Zenit's throat now, which only brings out a negative reaction," and said gay players were "unworthy of our great city."