A statement from the Championship club said 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."

The Leeds United Supporters' Trust posted on social media: "We're disappointed to see allegations of racism by a Leeds fan at the QPR game, there is no place for racism on or off the field.

"This is not a representation of our support base and we will ensure the club are made aware."

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."

Anti-discrimination charity Kick It Out said it had contacted both clubs and the FA and "offered support in any potential investigation".

Leeds lost the game at Loftus Road 1-0. They would have gone top of the Championship with a victory but instead they are third in the table, two points behind leaders Norwich City with 12 games of the season remaining.