Faculty of Economy, which damaged two cars. 21 KFOR/NATO soldiers were injured slightly, and one of them seriously, the night of 23/24 November. On 20 December, Serbian police arrested Zvonko and Zarko Veselinović, who had allegedly organised the 27 and 28 September barricades at Jarinje and Jagnjenica, respectively, causing controversy in the Serbian public. North Kosovo referendum In February 2012, four northern Serb-dominated regions held a non-binding referendum to ask if the institutions of Kosovo should be recognised. The result saw 99.74% of voters reject the Republic of Kosovo. June 2012 Shortly after Serbia's new president, Tomislav Nikolić, took office on 1 June in Zvečan, KFOR German troops blocked a bridge with armoured vehicles and barbed wire in an attempt to remove a roadblock, causing a confrontation with several hundred protesters who threw rocks at them. The soldiers were then reported to have returned fire with rubber bullets and tear gas, which led to a further confrontation with Kosovan Serbs using small arms. Four Serbs and two German soldiers were wounded. Spokesman Colonel Uwe Nowitzky reported there was sniper fire aimed at German forces, and that the soldiers retaliated by firing live ammunition on at least one "sniper pit" which was consequently "deactivated". Nowitzky added: "KFOR condemns this act of violence. KFOR will not allow the situation to escalate and will use a proportional level of force necessary to maintain a safe and secure environment." KFOR said it would continue to seek the removal of roadblocks, while Kosovan Serbs vowed those affiliated with the government in Pristina would be unable to impose their writ on the north. Zvečan's mayor, Dragiša Milović, said that KFOR refused to allow Serb medical personnel to assist the wounded Serbs. "A commander told me they have the authority to use deadly force on anyone who throws a stone or uses a weapon." Brussels Agreement (2013) Response Kosovo Prime Minister Hashim Thaçi said the initial police operation was a "concrete step in establishing the rule of law [in North Kosovo]". He added that through co-operation with the "international community...the constitution and the sovereignty of my country are sacred for myself and for my countrymen and go beyond any partnership or loyalty". On 3 August, the government of Kosovo stated it would not accept a KFOR-Serbia deal, which included moving road blocks in northern Kosovo. The next day Foreign Minister Enver Hoxhaj accused Serbia of seeking to