The match held at the stadium of Zapresic was guarded by 1,000 policemen most of whom were riot police.
Some 300 fans of the Belgrade team, who attended the event, were been escorted by the police during the match and while leaving the stadium. Security measures have been stepped up during their arrival in and the departure from Croatia so as to eliminate possibilities for incidents which have so far accompanied matches between sports clubs from Croatia and Serbia.
Before today's soccer match the Zagreb police reported about the two incidents which occurred on Wednesday night, the first at Zagreb's central square about 40 minutes after midnight, when a 54-year-old Zagreb resident wearing a Zvezda outfit was provoking passers-by.
A group of 12 young men tried to assault him, but the police intervened and several youths assaulted the police, one of them hitting an officer with a wooden stick.
All 12 youths were taken into custody and will not be released today. The 54-year-old was also taken into custody because he continued to hurl insults and provoke.
The second incident occurred shortly before midnight, when the police saw about 10 youths collecting stones around Maksimir stadium. When they saw the police, the youths started running, but three were caught and brought into custody.
In the first leg of the second qualifier for the UEFA competition, Inter Zapresic was defeated by the guests from Belgrade (1:3). The second leg is in two week's time in Belgrade.
Around 4,000 spectators attended the Zapresic match.