UEFA, the governing body of European football, has not yet disclosed the full details of the incident.
UEFA has announced an investigation into several Real Madrid players for alleged misconduct.
The incident occurred on March 12, when Real Madrid secured a spot in the Champions League quarter-finals by winning a penalty shootout against city rivals Atlético Madrid. After the match, Real Madrid players celebrated in front of Atlético supporters at the Wanda Metropolitano.
While UEFA has not revealed specific details, Spanish media reports suggest that Atlético Madrid filed a complaint regarding the behavior of Real Madrid players. UEFA has taken this into account and, on Thursday, announced that players Antonio Rüdiger, Kylian Mbappé, Dani Ceballos, and Vinícius Júnior are under investigation for potential unsporting conduct.
Video footage shows several Real Madrid players dancing and making gestures in front of Atlético Madrid supporters during their celebration. In response, home fans threw objects from the stands.
UEFA has stated that it will provide more details about the incident at the appropriate time.
