Hard-line supporters of Serbian mass killer Radovan Karadzic are threatening to bring violent chaos to Belgrade tomorrow with a huge rally in his support.

Former Bosnian Serb leader Radovan Karadzic, the alleged architect of war crimes including Europe’s worst massacre since the Second World War, was in custody today after more than a decade on the run.

Nato today welcomed the plea by the wife of fugitive Bosnian Serb war crimes suspect Radovan Karadzic for her husband to surrender, saying such a move would benefit his family, Bosnia and the whole region.

Former Bosnian Serb leader Radovan Karadzic, who has been the UN war crimes tribunal’s top fugitive for nearly a decade, will not surrender, his brother said today.