A UN court has rejected an appeal by Bosnian Serb former leader Radovan Karadzic and increased his sentence to life in prison, BBC reported.
The tribunal on Wednesday ruled that his initial sentence was too light.
In 2016 Karadzic, 73, was found guilty of genocide and war crimes by a UN tribunal in The Hague and given a 40-year prison sentence.
He planned the Srebrenica massacre of July 1995 - the worst atrocity in Europe since World War Two.
Karadzic had said his conviction was based on "rumours". He launched an appeal against his sentence last year, telling judges that the expulsion of Muslims and Croats in the 1990s had been "myths".
Karadzic, a former psychiatrist, was president of the Bosnian Serb entity Republika Srpska during the Bosnian War in the 1990s.