Serbia-Montenegro ? Serbia’s failure to arrest war crimes fugitive Ratko Mladic – the ex-Bosnian Serb army commander indicted for genocide – prompted the European Union on Wednesday to suspend aid and trade talks.

The EU said it was suspending pre-membership talks because Serbia-Montenegro failed to meet the bloc’s April 30 deadline to deliver Mladic to the U.N. tribunal in The Hague, Netherlands. The EU earlier had set an end of March deadline to hand over Mladic, but extended it.

Mladic is wanted by the U.N. war crimes tribunal for the former Yugoslavia. He is charged in the 1995 slaughter of 8,000 Muslim men and boys in the Bosnian enclave of Srebrenica.

Carla Del Ponte, chief prosecutor at the U.N. war crimes tribunal, said Serbian authorities knew Mladic’s location 10 days ago and could have arrested him. She said Mladic is hiding in the Belgrade region and changing apartments daily. She added that she suspects he is being aided by inside information and she also accused Serbia’s prime minister of misleading her by insisting a month ago that Mladic’s arrest was imminent.