One of the major sticking points in the upcoming referendum on south Sudan's secession from the north is the future of Abeyi, an oil-rich border region which both sides want to control.

Solving the dispute temporarily, a deal to postpone the decision over who controls the nation's oil wealth has been postponed.

But as Al Jazeera's Anita McNaught reports from Juba, this could spell future difficulties for the country.