Black-on-black violence in Africa: Violence in South Sudan, which broke from Sudan in 2011, has escalated to "a new brutality and intensity," according to a new UN report accusing the Sudan People's Liberation Army of carrying out a campaign of "killing, rape, abduction, looting, arson, and displacement"

It notes that 100,000 people have been displaced, while at least 172 women and girls have been raped and abducted. Among the most disturbing allegations are reports of nine separate incidents in which females were burnt alive in their homes after being gang-raped. The report also describes how a woman was dragged out of her hut and gang-raped in front of her 3-year-old child. Another was forced to hold red-hot coals in an attempt to get her to disclose the location of rebels or cattle.