Sudan clashes kill dozens
Sudan's army and rebels said on Friday that they have clashed on two fronts, reportedly leaving dozens of people dead.
The army says it killed 32 insurgents who attacked a village in the western Darfur region. The rebels claim they drove government troops out.
Separately, Khartoum says 45 rebels were killed in a village in South Kordofan, near South Sudan's border.
The Justice and Equality Movement (JEM) rebels said they liberated the village, killing at least one soldier.
Last year, rebel groups in the two states and also in Blue Nile state formed an alliance with the aim of toppling the government of President Omar al-Bashir.
Khartoum accuses South Sudan of backing the insurgents. The government in Juba denies the charge.
The latest fighting comes as the US has warned of an "outright conflict" between Sudan and South Sudan over a prolonged border dispute.
South Sudan has accepted a border roadmap proposed by the African Union, but Sudan is refusing to do so.