KHARTOUM, Sudan (AP) — Sudan’s President Omar al-Bashir says his country will only resolve a border dispute with South Sudan by adhering to the U.N.-brokered agreement by which the south gained its independence last year.

Khartoum says it plans to participate in African Union-sponsored talks with South Sudan beginning Tuesday in Addis Ababa, Ethiopia. Negotiations broke up earlier this month when the two sides disagreed over the location of a line to be the basis of a demilitarized zone.