epa02521269 South Sudanese politician, former Foreign Minister of Sudan, Lam Akol ( R ) casts his vote in the referendum on the independence of South Sudan at a polling station in Khartoum, Sudan, 09 January 2011. Voting in the South Sudan independence referendum started 09 January and is due to last until 15 January. For the vote to be valid, a 60 per cent of those registered have to vote. According to the referendum commission's timetable, preliminary results will be announced on 01 February and the final results are expected by 14 February. EPA/PHILIP DHIL < 뉴스의 새 시대, 연합뉴스 Live >< 모바일 애플리케이션 >< 포토 매거진 >< 저작권자(c)연합뉴스. 무단전재-재배포금지. >