On 1 March the Pakrac clash occurred when local Serb police seized the town's police station and declared Pakrac a part of SAO Krajina. It was one of the first larger clashes between Croat forces and the rebel SAO Krajina, supported by the JNA. It ended without casualties and with the restoration of Croatian control. On 31 March a Croatian police convoy was ambushed at the Plitvice Lakes. Until the spring of 1991 Tuđman, together with the Slovenian leadership, was ready to accept a compromise solution of a confederation or alliance of sovereign states within Yugoslavia. After the Serbian leadership rejected their proposals and armed provocations became more frequent, Tuđman decided to realize the idea of a complete Croatian independence. On 25 April 1991, the Croatian Parliament decided to hold an independence referendum on 19 May. Croatian Serbs largely boycotted the referendum. The turnout was 83.56%, of which 93.24% or 2,845,521 voted in favour of the independence of Croatia. Both Slovenia and Croatia declared independence from Yugoslavia on 25 June 1991. The Yugoslav side accused the two of secession. The federal government ordered the JNA to take control of border crossings in Slovenia, which led to the Ten-Day War in which the JNA was routed. The Ten-Day War ended with the signing of the Brioni Agreement, when a three-month moratorium was placed on the implementation of the decision.