(ANSA) - BELGRADE, JUN 30 - In Serbia, police intervened overnight to clear a series of roadblocks in Belgrade and other locations set up by students protesting the arrest of dozens of their colleagues during the incidents and clashes in the streets at the end of the anti-government demonstration in the capital on Saturday evening. The roadblocks targeted key intersections, city access points, bridges, and major roads. According to the Ministry of the Interior, no further incidents occurred, and traffic in Belgrade and the country's other major cities has resumed normal operations this morning. (ANSA).