The search for UN-wanted war crime suspects General Ratko Mladic and Radovan Karadzic has failed to yield any results, but efforts to find them are continuing, Serbian officials said today.

Gen Ratko Mladic’s days as a war crimes fugitive may be numbered, according to a senior US State Department official who announced the US was lifting its freeze on a $10m (€8.2m) aid package to Serbia-Montenegro.

A top Bosnian Serb general who was a close aide to wartime commander Ratko Mladic is to surrender voluntarily to the UN war crimes tribunal.

Defying international pressure, Serbia is refusing to arrest four top suspects wanted by the UN war crimes tribunal.