Official results from Sudan's recent separation poll showed more than 99 per cent voted to split the south of Africa's largest country from its north.
Of more than 3.8 million ballots cast, less than 15,000 were for continued unity, the Southern Sudan Referendum Commission said.
In five of south Sudan's 10 states, the vote was 99.9 per cent in favour of separation. The lowest figure endorsing secession was 95.5 per cent.
International observers had earlier hailed the Jan 9 to 15 vote as largely free and fair.