Leaders in Bosnia and Herzegovina appealed to the United Nations today to deploy peacekeeping forces in the republic as fighting raged for a third day in the town of Bosanski Brod.
"The situation in the republic is seriously deteriorating," Ejup Ganic, a member of the republic's collective presidency, wrote in a letter to Secretary General Boutros Boutros-Ghali of the United Nations. "Military observers should urgently come to this republic."
About 30 people have been killed in fighting between Serbs and combined forces of Muslim Slavs and Croats in and around Bosanski Brod, near the border with Croatia, local reports say. Other Fighting Near Croatia
Fresh fighting was also reported today near the Adriatic town of Neum, also close to Croatia, involving the Yugoslav Army and Croatian forces. But the major battlefronts in Croatia were said to be quiet.
Three members of Bosnia and Herzegovina's presidency flew by helicopter to Bosanski Brod today to investigate reports that Croatian and Muslim Slav forces had killed a dozen Serbian civilians in fighting on Thursday night in the nearby village of Sijekovac.
Sarajevo television said tonight that witnesses who were in the village today reported seeing dozens of burned houses and several charred bodies.
Violence in Bosanski Brod began four weeks ago when Serbian guerrillas, armed by the pro-Serbian Yugoslav Army, attempted to capture a key bridge over the Sava River leading to Croatian territory.
Sarajevo radio and spokesmen at Bosanski Brod's Croatian and Muslim Slav crisis center reported that Yugoslav Army jets had circled over Bosanski Brod early today.
The Yugoslav Army denied the reports of the flights and emphasized that it had taken no part in the fighting in the town. But it released a statement tonight saying an army jet fighter had crashed near the Bosnian town of Banja Luka, a major army stronghold.
The United Nations is preparing to deploy the bulk of a 14,000-member peacekeeping force in the war-torn regions of Croatia beginning next week. The peacekeeping operation's headquarters is in Sarajevo, Bosnia and Herzegovina's capital, but the deployment plan does not foresee actual peacekeeping operations inside this republic's borders.
The Muslim Slavs and Croats, who account for about 60 percent of the population, are pressing for the republic to become independent of Yugoslavia.
Serbian leaders in Sarajevo today approved a constitution for a "Serb Republic of Bosnia and Herzegovina," which they say will be a state in a reconstituted Yugoslavia including Serbia, Montenegro and Serbian-populated parts of Croatia. The republics of Croatia, Slovenia, Macedonia and Bosnia and Herzegovina have declared independence from the old Yugoslavia.
Photo: A scheduled exchange of Croatian and Serbian prisoners of war failed to take place in Sarvas, Yugoslavia, when the Croation side insisted on a ratio of nine Croats for one Serb, instead of a previously agreed six-to-one ratio. Croatian prisoners ducked down to avoid being photographed. (Associated Press)