U.N. Secretary-General Ban Ki-moon hailed the arrest of fugitive Bosnian Serb wartime general Ratko Mladic on Thursday as "an historic day for international justice." "This arrest marks an important step in our collective fight against impunity," Ban told an event in Paris. His remarks were reported by the U.N. press office in New York, according to Reuters. Mladic, accused of orchestrating the massacre of 8,000 Muslims in the town of Srebrenica and a brutal siege of Sarajevo during Bosnia's 1992-95 war, was arrested in Serbia after years on the run from international genocide charges. -- SPA