South Sudan foes agree 'permanent' ceasefire within 72 hours

From left to right, South Sudan opposition leader Riek Machar, Ugandan President Yoweri Museveni, Sudanese President Omar al-Bashir and South Sudanese President Salva Kiir at peace talks in khartoum

South Sudan President Salva Kiir and arch-foe Riek Machar agreed Wednesday to a "permanent" ceasefire to take effect within 72 hours, raising hopes of a deal to end their country's devastating war.

"All parties have agreed on a permanent ceasefire within 72 hours of signing the Khartoum Document," Sudan's Foreign Minister Al-Dierdiry Ahmed announced following talks in the Sudanese capital.