The Sudanese government no longer recognises the northern branch of the country's largest opposition party, the Sudan People's Liberation Movement, known as the SPLM-North.
Khartoum blames the SPLM-North for violence in the Blue Nile and South Kordofan states. There have been accusations of airstrikes on civilians, sending thousands fleeing their homes.
In this episode, we ask: Is Sudan heading for another Darfur-like tragedy? And after the secession of Southern Sudan, can the government stop the country fragmenting even further?
Inside Story, with presenter Felicity Barr, discusses with guests: William Hai Zaza, a communications lecturer at the University of Juba; Hamdy Abdelrahman, a professor of political science at the University of Cairo; and Rabie Abdul Atti, a senior member of Sudan's National Congress Party and an advisor to the information ministry.