Bolton striker Marvin Sordell claims he and some of his team-mates were racially abused by Millwall fans during his side's 2-1 defeat at the Den.
Sordell said on Twitter that he had reported the incident and claimed midfielders Lee Chung-yong and Darren Pratley, plus fellow forward Benik Afobe, had also been subjected to racist taunts by some home supporters.
Sordell said on Twitter: "Putting the match aside, it's 2012 in England and people are still shouting racial abuse at a football game!? Shocking.
"Chungy, Pratts, Benik and I had all sorts of things said to us. The police were standing yards away and did nothing."
Sordell also received abusive responses to his allegations on Twitter.
He added: "Funniest thing is if I had come on and scored and gave them some back, I would be the one who got fined."
The FA has confirmed that they would investigate the incident and Bolton released a statement of their own.
It read: "Marvin Sordell has made Bolton Wanderers aware that he was subject to alleged racial abuse during the game against Millwall.
"We are now working with Millwall to investigate and the club have informed us that they will speak to the police and match officials.
"Both clubs remain determined that racist behaviour or language will not be tolerated."