ADDIS ABBA (Reuters) - Sudan and South Sudan have agreed to withdraw their forces from a demilitarized border zone by March 14, a mediator said on Friday.

"D-day is March 10. The agreement calls for immediate orders(for withdrawal) to be issued within d-day plus four days," former South African President Thabo Mbeki, who chairs an African Union mediation panel, told a news conference.

(Reporting by aaron maasho; Editing by Giles Elgood)