Liverpool have apologised after footage appearing to show a fan making an allegedly racist gesture during the FA Cup fourth-round victory over Manchester United at the weekend was shown on the club's website.
"We can confirm that footage was mistakenly included in the highlights package that appeared on the website," a club official told the BBC. "It should not have been included and we are sorry."
Meanwhile, a man arrested over an alleged racist gesture made during the game has been released on bail.
The 58-year-old, from north Wales, was held on Saturday evening hours after the game, the first between the rivals since the eight-match ban imposed on Liverpool striker Luis Suarez after the FA found him guilty of racially abusing the United captain, Patrice Evra.