Police are investigating allegations of racist abuse directed towards Wycombe striker Adebayo Akinfenwa during Saturday's League Two match against Cambridge.
Akinfenwa highlighted the incidents in Wanderers' 2-1 win at the Cambs Glass Stadium on Twitter.
He wrote: "Good 3pts 2day, great support again. It's a shame that a small group of Cambridge fans focus on colour rather than the game £KickOutRacism.''
The abuse was reported to the match referee, Trevor Kettle, Wycombe said, and the Football Association is contacting Akinfenwa and Cambridge for their observations.
Good 3pts 2day, great support again. It's a shame that a small group of Cambridge fans focus on colour rather than the game #KickOutRacism
- daRealAAkinfenwa (@daRealAkinfenwa) November 19, 2016
Cambridge are conducting their own investigation after communicating with Wycombe, and Cambridgeshire Police are working to identify those involved.
A statement from Cambridgeshire Police read: "Officers are investigating an allegation of racial abuse at the fixture between Cambridge United and Wycombe Wanderers on Saturday, November 19.''
Detective chief inspector Steve Kerridge said: "We are working closely with Cambridge United and Wycombe Wanderers to identify the people involved.
"The behaviour that has been alleged against a small minority is at odds with the core community and family-orientated principles of the club.
"It is totally incompatible with the spirit of tolerance and diversity for which the city of Cambridge is known.''
Cambridge chief executive Jez George told the Cambridge News: "We're in dialogue with Wycombe and we're investigating the situation because these are serious allegations.''
Cambridge Fans United chairman Robert Osbourn added: "I am aware that the club is investigating the claims and is seeking to identify those involved so that appropriate action can be taken.
"CFU supports the club's investigation wholeheartedly and would urge anyone who saw and heard what happened to contact the club.''
Wycombe said in a statement: "Wycombe Wanderers have offered their full co-operation to Cambridge United in their investigation into racist abuse during Saturday's fixture at the Cambs Glass Stadium.
"The two clubs will work together to ensure appropriate action is taken against a small number of home supporters who are alleged to have made racist remarks to Wycombe striker Adebayo Akinfenwa in the first half of the match.''