The Football Association has praised the behaviour of "the vast majority" of England fans but pledged to address any allegations of wrongdoing that come to their attention.
Director of communications Adrian Bevington revealed the FA had failed to find any evidence of alleged racist chanting during the recent World Cup qualifier against San Marino. Anti-racism group Football Against Racism in Europe reported England to FIFA over the singing of an abusive song directed at Rio and Anton Ferdinand during the March 22 contest in Serravalle, which England won 8-0.
But Bevington told Sky Sports News: "We have been asked to make a submission to FIFA and have been through all the evidence recorded by our security team. We haven't been able to find or identify any individuals chanting - but I want to make clear I am not disputing or refuting that the individuals who reported this heard it."
The allegations centred on a chant by a section of the England crowd that suggested the Ferdinand brothers should be burned on a bonfire.
It has been suggested the song had racist overtones because Anton Ferdinand was the target of racist abuse from former England captain John Terry.
Kick It Out chairman Lord Ouseley described the chants as "vile" and Bevington said: "Quite clearly people were acting in good faith and we have to welcome any individuals reporting anything they hear. That's how to address things moving forward.
"But we want to make sure the general majority of our fans are praised for their good behaviour. They spend a lot of money and the players are really appreciative of it.
"The vast majority of our fans do behave. The fans themselves have worked incredibly hard in the past decade, attend tournaments in vast numbers and have a reputation for building relationships with individual nations which is second to none. While we can't rest on our laurels with a small minority we have to applaud the vast majority.
"But we can't have any chanting of a racist or xenophobic nature when we're travelling round the world. And we want people to be confident they can report it when they hear it.
"FIFA are aware of the efforts made by England football as a collective but how they deal with it will be for them to do so."