Inter-ethnic conflicts threaten fragile South Sudan
Conflict between Murle and Lou Nuer tribes in the Jonglei state of South Sudan has been going on for the last 50 years.
Russia considers withdrawal from South Sudan force-UN
Russian mission grounds helicopters after attacks on personnel
Chad expels former UN Sudan chief visiting Darfuri refugees
An estimated 300,000 people killed and over 2 million displaced since conflict broke out in Sudan's western Darfur region in 2003.
Acute food shortages meet returnees to South Sudan ?UN
Some 400 South Sudanese return to Africa's newest nation each week from Sudan
Sudan and southern rebels clash in oil border state
The rebels said they had killed nine government troops, but the army denied this
Children among 57 killed in S.Sudan tribal clashes-govt
A cycle of ethnic violence in South Sudan's vast Jonglei state has displaced 60,000 people