killed by a machine gun covering retreating SAO Krajina troops. Shortly afterwards, the Yugoslav Air Force dispatched a Mil Mi-8 helicopter to attend to wounded on both sides, and it left the area after an hour and a half. The helicopter was dispatched by Colonel General Anton Tus, head of the Yugoslav Air Force at the time, following a request by Josip Boljkovac, Interior Minister of Croatia. As the fighting around Plitvice ended, sporadic gunfire was reported near Titova Korenica, to the south. The same afternoon, a Croatian police station was established at the Plitvice Lakes and Tomislav Iljić was appointed its commanding officer. The station was staffed by approximately 90 police officers who were redeployed from Gospić. The Presidency of Yugoslavia met in an emergency session the same evening to discuss the clash. At the insistence of Serbia's representative on the Presidency, Borisav Jović, the JNA was ordered to intervene, gain control in the area and prevent further combat. The Serbian parliament also met in an emergency session, treating the clashes as a virtual casus belli and voting to offer the Krajina Serbs "all necessary help" in their conflict with Zagreb. The following day, the SAO Krajina adopted a resolution to the effect that the territory was incorporated into Serbia, whose constitution and laws were adopted for use in the Serb-held areas of Croatia. Croatian authorities accused Serbia's president, Slobodan Milošević, of stage-managing the unrest in order to break Croatia's resolve to declare independence unless Yugoslavia was transformed into a loose confederation. They also accused him of attempting to coax the JNA to overthrow Croatian government. JNA intervention On 1 April, the JNA established a buffer zone to separate the belligerents at Plitvice Lakes, deploying elements of the 1st and the 5th Military Districts. Those were an armoured battalion of the 329th Armoured Brigade based in Banja Luka, a battalion of the 6th Mountain Brigade based in Delnice, a reconnaissance company and a mechanised battalion of the 4th Armoured Brigade based in Jastrebarsko and Karlovac, a battalion of the 306th Light Anti-Aircraft Artillery Regiment based in Zagreb, a signals company of the 367th Signals Regiment based in Samobor, a company of the 13th Military Police Battalion based in Rijeka and an anti-aircraft artillery battery drawn from the 13th Proletarian Motorised Brigade based in Rijeka. Finally, the 5th Military District set up a forward command post at the Plitvice Lakes.