Leeds United and the Football Association are investigating after a fan was filmed allegedly using racist language and gestures.
The footage was filmed during Tuesday’s match at Selhurst Park, with the alleged abuse directed towards QPR supporters.
Leeds said in a statement it is "aware of a video circulating on social media".
It continued: "Racism will absolutely not be tolerated by Leeds United and anyone found to be racially abusive will be banned from attending all games indefinitely."
QPR said they "take all accusations of racial abuse very seriously" and anyone found to be guilty of such abuse will be banned from Loftus Road for life.
A statement added: "The club also received a number of videos showing the alleged offences. These videos have been passed over to the club's dedicated football officer, who will in turn forward them to his counterpart in Leeds.
"QPR is a family club and will not tolerate such abuse at Loftus Road."
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