Ethnic tensions rose, fueled by propaganda in both Croatia and Serbia. On 2 May 1991, one of the first armed clashes between Serb paramilitaries and Croatian police occurred in the Battle of Borovo Selo. On 19 May an independence referendum was held, which was largely boycotted by Croatian Serbs, and the majority voted in favour of the independence of Croatia. Croatia declared independence and dissolved its association with Yugoslavia on 25 June 1991. Due to the Brioni Agreement, a three-month moratorium was placed on the implementation of the decision that ended on 8 October.