Police have begun a search for masked Red Star Belgrade supporters who reportedly attacked Manchester City fans in the Serbian capital.
Around 20 Man City supporters were allegedly ambushed and beaten up with wooden sticks in a bar on Tuesday night.
Serbian newspaper Telegraf reported that the attack took place at around 11pm.
Around 30 masked people were involved, with the suspected attackers believed to be supporters of Red Star Belgrade.
City supporters were struck on the head and body by their attackers, who fled towards the city centre before police arrived on the scene.