UN chief warns South Sudan's warring leaders to put people first
More than 10,000 people have been killed and 1.5 million driven from their homes during the conflict that erupted in Dec 2013
Two Russians kidnapped in Sudan's Darfur region
The Russians work for UTair airline which works with the U.N.-African Union peacekeeping mission
Sudanese opposition calls for nationwide boycott of April polls
Opposition parties cite deteriorating political and press freedoms, worsening insurgencies as boycott reasons
South Sudan's warring sides sign another ceasefire deal
The two sides need a transitional government in place by July, when Salva Kiir's presidential term runs out
South Sudan president and rebel leader sign "power sharing" deal
Leaders edge closer to final deal to end 15-month conflict that has ravaged world's newest country
Sudan rebels free Bulgarian aid workers -ministry
The WFP workers were held by rebels when their helicopter made an emergency landing in the strife-torn South Kordofan region
FACTBOX-Under-reported conflicts in 2015
Several under-reported conflicts are ruining the lives of millions in some 30 countries
Under-reported conflicts seen affecting millions in 2015
Millions at risk because conflicts affecting them are barely reported so pressure to end them is lacking
Medical aid group MSF says pulls out of parts of Sudan
Sudanese government denies accusations of blocking MSF's work