Culture, Media and Sport Secretary Maria Miller MP has urged UEFA to run a full investigation into the alleged racist chanting suffered by Yaya Toure in Manchester City's away win against CSKA Moscow on Wednesday night.
Miller revealed concerns that Russia are soon to host a World Cup while supporters from their leading clubs behave as they did during the game.
"Any form of racism in sport is absolutely unacceptable and I think any allegation of this sort needs to be investigated in full and UEFA needs to take it very seriously indeed," BBC Sport quotes Miller as saying.
"When countries like Russia are going to be very shortly hosting the World Cup it's important that we know a tough line is going to be taken."
CSKA this morning denied any wrongdoing.