In south Sudan, almost 100 people have been killed in clashes ranging from cattle raids to rebel attacks in the past week. In Warrap state, 29 people were killed after an attack on Monday by rebels led by Peter Gadet, a former southern general turned militia commander. The separate battles between heavily armed cattle raiders last week have left at least 71 people dead in Lakes state. Clashes over cattle are common in south Sudan and Kenya's remote north, where herders are often armed. Meanwhile, UN Secretary General Ban Ki-moon has called for an immediate end to clashes in the Sudanese state of South Kordofan that are threatening to cast a pall over southern Sudan's imminent independence.