Representative of the Sudanese government Amin Hassan Omar (L) and Sudanese rebel Justice and Equality Movement (JEM) representative Ahmed Tugod Lsan sign an agreement in Doha February 23, 2010. Photo/REUTERS

Sudanese President Omar al-Bashir attends a news conference after the signing of an agreement in Doha February 23, 2010. Photo/REUTERS

Sudan's First vice president Salva Kiir (L) gestures to leaders of the Elders Group in Juba, October 2, 2007. South Sudan President Salva Kiir on Tuesday urged a group of elder statesmen to pressure the northern government to implement key parts of a north-south peace deal which ended Africa's longest civil war. Photo/FILE

Sudanese activists shout slogans during a demonstration in the streets of the capital Khartoum March 4, 2010. More than 200 political activists held a rare public rally in Khartoum on Thursday accusing authorities of clamping down on meetings and campaigns weeks ahead of elections. REUTERS

A Sudanese activist shouts slogans during a demonstration in the streets of the capital Khartoum March 4, 2010. More than 200 political activists held a rare public rally in Khartoum on Thursday accusing authorities of clamping down on meetings and campaigns weeks ahead of elections. REUTERS

Sudanese activists shout slogans during a demonstration in the streets of the capital Khartoum March 4, 2010. More than 200 political activists held a rare public rally in Khartoum on Thursday accusing authorities of clamping down on meetings and campaigns weeks ahead of elections. REUTERS

Sudanese activists march during a demonstration in the capital Khartoum March 4, 2010. More than 200 political activists held a rare public rally in Khartoum on Thursday accusing authorities of clamping down on meetings and campaigns weeks ahead of elections. REUTERS

Malim Mahboub (left) Secretary General IGAD and Foreign Affairs minister Moses Wetangula during the IGAD Council of Ministers session on the Sudan peace process. Photo/LIZ MUTHONI

IGAD Secretary General Malim Mahboub (left), Egypt Ambassador to Kenya Jaher Hamza (centre) and Sir Derek Plumbly Chairman Assessment and Evaluation Commission during the session on Monday. Photo/LIZ MUTHONI

Foreign Affairs minister Moses Wetangula (right) and Norway Director Ministry of Foreign Affairs Vegard Ellefsen on Monday. Photo/LIZ MUTHONI