Some 99% of South Sudanese voted to secede from the north, according to the first complete results of the region's independence referendum.

A total of 99.57 percent of those polled voted for independence, according to the referendum commission.

Early counting had put the outcome of the ballot beyond doubt, indicating Southern Sudan had secured a mandate to become the world's newest nation.

The poll was agreed as part of a 2005 peace deal to end two decades of war.

Final results from the January 9-15 vote, which Sudanese President Omar al-Bashir has said he will accept, are expected early next month.

If the result is confirmed, the new country is set to formally declare its independence on July 9, BBC reported.