The International Criminal Tribunal for the former Yugoslavia has cut seven years off the prison sentence of former Bosnian Serb leader Momcilo Krajisnik.
Appeals Chamber judges overturned Krajisnik's convictions for the murder, extermination and persecution of non-Serbs during the 1992-95 Bosnian war.
But he must still serve 20 years in jail for the deportation, forcible transfer and persecution of civilians.
Krajisnik was a close aide to ex-Bosnian Serb leader Radovan Karadzic.