There are increasing reports that Serbia is closing in on the whereabouts of key war crimes fugitive General Ratko Mladic. A number of media sources in Belgrade say investigators from The Hague have intercepted telephone calls between the general and one of his accomplices. There is also growing speculation that Belgrade has been negotiating with Mladic on his surrender to the Hague tribunal. The general has been on the run since 1995. He faces several charges including genocide over the massacre of thousands of Muslims in Srebrenica. Interior Minister Dragan Jocic says authorities have information on him, but not enough to locate him. The government has faced international pressure to find and extradite Mladic and the former Bosnian Serb leader, Radovan Karadzic. UN war crimes prosecutor Carla del Ponte has urged Serbia to arrest the pair by the end of this week.