Norwich manager Neil Adams says striker Cameron Jerome accused Leeds defender Giuseppe Bellusci of racially abusing him during their Championship league match on Tuesday.
Referee Mark Clattenburg temporarily halted the game midway through the first half after receiving a complaint from Jerome following a verbal clash with his Italian opponent.
The official addressed both managers on the touchline before letting Bellusci off with a warning, although he booked Jerome moments later for clattering into the Leeds player.
There were no further incidents between the two, but it emerged after the match that Jerome had accused his opponent of making a racist comment.
Adams said the team supports Jerome and that he expects an investigation to follow.
"Cameron Jerome has alleged he was the subject of a racist remark," said Adams.
"Because of that Mark Clattenburg, who I felt handled the incident very well, came over to the touchline to explain to [Leeds manager] Darko (Milanic) and myself what I have just told you.
"He spoke to Cameron because of the way he had reacted. That was what he explained to us. He spoke to the players at halftime with a representative from each club and statements have been made now.
"Mark will submit a report to the relevant authorities and it will be dealt with from there. He didn't take any action at the time. He merely relayed what Cameron had said. It must now go through the proper channels.
"Yes, Bellusci is the player who has been alleged to have made the remark. My concern was to speak to Cameron at the break to make sure his head was right."
Leeds manager Darko Milanic confirmed he would be investigating the matter.
"I have not spoken to my player yet -- I will speak to him later,'' he said. "It's difficult for me to comment on something I didn't hear. This is all very new to me."
Information from Press Association was used in this report.