A football fan who splashed liquid, reportedly urine, on Moroccan winger Mbark Boussoufa has been identified and his details given to prosecutors, the Russian Premier League’s security director Alexander Meitin said.

The incident occurred while Boussoufa’s Anzhi team were playing CSKA Moscow at the latter’s home ground of Arena Khimki earlier this month in a match which CSKA won 1-0. Meitin had previously named the liquid as urine in reported comments. Meitin declined to name the person in question, citing legal reasons. Anzhi players were the victim of racist incidents on at least three occasions last season, with bananas thrown twice at left-back Roberto Carlos and once at defender Christopher Samba, both of whom are black.