Serbian authorities on Wednesday arrested the last remaining fugitive sought by the UN war crimes court, tracking Goran Hadzic down in a mountainous region in the northern part of the country, an official said. The former leader of Croatia's rebel Serbs during the country's bloody ethnic war, has been on the run for eight years, managing to evade justice despite international pressure for his arrest. He is wanted for atrocities stemming from the 1991-1995 conflict in Croatia, when he fought against Croatia's independence from the former Yugoslavia. The official confirmed a report of the arrest by B92 television, but said formal confirmation will come from President Boris Tadic. The president's office has called a press conference for later Wednesday. The official spoke on condition of anonymity because of the sensitivity of the matter.