Four Real Madrid players, including Kylian Mbappé and Vinícius Júnior, are being investigated for alleged "indecent conduct" during the Champions League game at Atlético Madrid, UEFA said on Thursday.

UEFA launches an investigation into Real Madrid players' controversial celebrations at Atlético's home ground following their UEFA Champions League clash.

UEFA has opened an investigation into a possible breach of disciplinary regulations by several Real Madrid players at the end of their recent Champions League match at Atletico Madrid, European soccer's governing body said on Thursday.