evidence: Ban called on South Sudan to immediately withdraw its forces from the town of Heglig, saying its seizure constituted "an infringement of the sovereignty of Sudan and a clearly illegal act." He also called on Khartoum to stop shelling and bombing South Sudanese territory and to withdraw its forces from disputed territories. [...] Since then, oil installations and areas around them are increasingly being targeted militarily. Heglig is the scene of the latest fighting. South Sudan says the Heglig oil field is within its territory, based on borders outlined in 1956 by Britain, Sudan’s former colonizer. Officials say their forces will not leave the oil field until the United Nations or the African Union sends a neutral force to oversee the area. [...] Bashir, who seized power in a 1989 coup and is wanted on war-crimes charges by the International Criminal Court, has vowed to retake the oil field and push on toward Juba, the capital of South Sudan. The capture of Heglig by the South Sudanese "has revived the spirit of jihad and martyrdom among the Sudanese people," he said at the rally in el-Obaid, North Kordofan’s capital, according to the official Sudan News Agency.