Twelve players of a Bosnian league football team were arrested overnight for attacking three referees after a match played in the southern town of Posusje, national radio reported on Sunday.

Players and fans of the Posusje team attacked referees after the end of the the Muslim-Croat Federation's First League match against Igman Konjic on Saturday.

The players were angry over the referees' decisions during the match that ended scoreless, the BH Radio 1 said.

The referees were admitted to a Posusje medical facility and were released shortly after. It was not clear whether the incident was ethnically related.

The unprecented attack took place three weeks after a 24-year-old fan was killed in a clash of supporters of Bosnia's Premier League rival teams.

Following the 1992-1995 war Bosnia remains ethnically divided and violence during major football matches occasionally occurs.

The war, that claimed at least 100,000 lives, pitted the country's Croats, Muslims and Serbs against each other.

Bosnia is split into two semi-independent entities - the Muslim-Croat Federation and the Serbs' Republika Srpska - linked with weak central institutions.