Zagreb police have arrested a minor and two 24-year-old men on the suspicion that they attacked a group of junior players of the Belgrade Partizan water polo club in downtown Zagreb a week ago.
The suspects are charged with inflicting bodily injuries on two Serbian minors out of hate.
The attackers are believed to have approached two players of the Belgrade youth water polo club, one of whom was wearing his club's jersey, after which they started insulting them and then physically assaulted them.
The attacked youths were in the company of another three minors, players of the same club, police said.
One of the attackers lit an incendiary device and threw it at the victims, after which the attackers, together with another two men, who have not been identified yet, started hitting and kicking them and then ran away.
The victims were given medical assistance in a city hospital, where it was established that they had sustained light injuries.
The police continue looking for the two unidentified attackers still at large.
The assault has been condemned by President Kolinda Grabar Kitarovic.
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Serbian Interior Minister Nebojsa Stefanovic said on Sunday that a recent assault on young Serbian water polo players in Zagreb was ethnically motivated and asked the Croatian police and prosecution to promptly find and prosecute the attackers.