The Football Association launched an investigation on Monday into the latest alleged racist incident to rock their game, involving Birmingham striker Dwight Yorke.
One spectator was ejected from the ground in an incident which echoed the sickening behaviour of Spanish fans towards England's black players during last week's friendly international in Madrid.
FA head of media relations Adrian Bevington said: 'Our position at present is that we are still establishing the facts and we hope to speak to all interested parties today.'
Both clubs are also to conduct their own investigations into events at Ewood Park, with Blues manager Steve Bruce outraged by the treatment of Yorke.
He said: 'I'll look into it more over the next 24 hours. Let's have a look and see if we can do something about it.
'It happened right close to the photographers, and there are cameras in the ground which will have picked up what happened.
'Personally I feel physically sick when things like that happen. We all get stick in the game, and fans pay hard-earned money to have a go at their former players.
'But something like this spoils it for everyone else. That's the last thing we should be seeing on an English football ground.
'Dwight has graced this country for 10 years and helped bring a trophy to Blackburn - and then some moron decides to give it the monkey taunts.'
Remarkably, Birmigham plc chairman David Sullivan played down the matter, claiming 'it is not the crime of the century'.
Making it clear his view is a personal one, and not necessarily that of the club, he told Sky Sports News: 'To me, it's all been blown out of all proportion.
'I heard absolutely nothing. If it's three out of 22,000 who make racist comments then it's not very nice.
'I think you have to pick up on it and ban those people from the ground but I just can't believe, with all that is going on in the world, that it's that big a deal.
'If someone had made a racist comment to me and it was three out of 22,000, I would say it's not very nice, I wish they hadn't made it, but it's not the crime of the century.
'It was only when he was warming up. He could have run up the other end of the ground.
'If you said to me do you want someone to punch you in the face or make a racial comment, I'd take the racial comment.
'Most of the comments were 'you lazy b******' not a racial comment but lazy, lazy, lazy was the bulk of the chanting.
'I would criticise any racism in the game, but I don't think there is very much. I go to football week in, week out and see virtually no racist abuse at games.'
Players chief Gordon Taylor countered Sullivan's views and warned that the game cannot let its guard slip in the battle against racism.
Taylor, chief executive of the Professional Footballers Association, said: 'There is no room for complacency whatsoever. We have had to address our own issues and generally we have been successful.
'Our efforts to tackle racism are a good example to the rest of the world but we would be naive to think we have eradicated it completely.
'It is a concern that there could be a copycat element to what happened in Spain in this but there are steps in place to deal with it and I believe Blackburn have dealt with this very quickly and efficiently.
'We have made a lot of progress over the past decade to the extent that the whole country was horrified by what happened in Spain.
'It is an outdated attitude but I was gratified by the general abhorrence shown after it. We have moved on from that.'
