Real Madrid have launched an investigation after a supporter allegedly performed a Nazi salute before the club’s Champions League win against Benfica on Wednesday.

Prior to the kick-off at the Bernabeu, a fan appeared to make the fascist gesture as the television cameras panned around the 83,000-seater stadium.

The fan was identified by security staff moments later and ejected from the ground.

Real beat Portuguese side Benfica 2-1 in the second leg of their knockout round play-off tie to progress 3-1 on aggregate to the last 16 of the Champions League.

In a statement, the Spanish club said they have asked its disciplinary committee “to initiate an immediate expulsion procedure” for the fan.

“Real Madrid condemns this type of gesture and expression that incites violence and hatred in sports and society,” it added.