War crimes suspect Goran Hadzic has been transferred from Serbia to the United Nations court at The Hague.
Mr Hadzic, 52, the wartime leader of ethnic Serbs in Croatia, is the last fugitive indicted for war crimes during the break-up of the former Yugoslavia.
He was arrested earlier this week after seven years on the run.
Mr Hadzic faces 14 charges of war crimes and crimes against humanity, including persecution, extermination and torture.
The BBC reports he is held responsible for the massacre of almost 300 men in Vukovar in 1991 by Croatian Serb troops and for the deportation of 20,000 people from the town after it was captured.
After the war, Mr Hadzic lived openly in the northern Serbian city of Novi Sad until 2004, when the Hague War Crimes Tribunal indicted him and he disappeared.
He is the last fugitive of 161 indicted for war crimes during the break-up of the former Yugoslavia.
Serbian President Boris Tadic said on Wednesday that Mr Hadzic had been detained in the mountainous Fruska Gora region, north of Belgrade, near his family home.
Prosecutor Vladimir Vukcevic said the breakthrough in the hunt came when Mr Hadzic tried to sell a stolen painting by Italian artist Amedeo Modigliani.
