Judges in The Hague acquitted Radovan Karadzic of one count of genocide on Thursday, but left 10 other war crimes and genocide charges standing against the former Bosnian Serb leader.
Judges said prosecutors had not presented enough evidence to support the genocide count covering mass killings, expulsions and persecution by Serb forces of Muslims and Croats from Bosnian towns early in the country's 1992-95 war.
However, they rejected defense motions to dismiss 10 other charges that included the 1995 killing of 8,000 Muslims in Srebrenica, Europe's worst massacre since World War II.
Karadzic was leader of the Bosnian Serb government during the three-year war that raged in Bosnia from 1992 after the break-up of Yugoslavia.
He was indicted for war crimes and genocide by the International Criminal Tribunal for the former Yugoslavia in 1995 and brought to The Hague 13 years later. His trial, under way since 2009, continues later this year with the opening of his defense case.
Reuters and The Associated Press contributed to this report.
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