A La Liga statement read: “La Liga will immediately report the racist insults and gestures received by Barcelona players to the Hate Crimes Section of the National Police Information Brigade, as well as informing the Co-ordinating Prosecutor of the Hate Crimes and Discrimination unit of the State Attorney General’s office.

“La Liga vehemently condemns the incidents at the Santiago Bernabeu and remains firm in its commitment to eradicate any kind of racist behaviour and hatred inside and outside stadiums.”

Real Madrid earlier said they had opened an investigation to identify the fans.

A club statement read: “Real Madrid strongly condemns any kind of behaviour involving racism, xenophobia or violence in football and sport, and deeply regrets the insults that a few fans uttered last night in one of the corners of the stadium.

“Real Madrid has opened an investigation in order to locate and identify the perpetrators of these deplorable and despicable insults so that the appropriate disciplinary and judicial measures can be taken.”

Spain’s migration and inclusion minister Elma Saiz said: “We will not allow aggressions that we do not tolerate in other spaces to become normalised in sports.”