Serb protesters in northern Kosovo blocked main roads for a second day on Sunday following a nightime exchange of fire with police after the arrest of a former Serb policeman, amid a surge in tensions between the Serb minority and the authorities.
In recent weeks Serbs in northern Kosovo, a hotbed of Serb nationalism, have met attempts by Pristina which they see as anti-Serb with violent resistance.
EULEX, the European Union mission tasked with patrolling the north of Kosovo, said a stun grenade was thrown on one of its armoured vehicles in the area on Saturday evening, but there were no injuries.
Josep Borrell, EU foreign policy chief, warned the bloc will not tolerate violence against members of its mission.