Thousands of people who fled insecurity in Sudan's Southern Kordofan State to neighbouring South Sudan's Unity State remain vulnerable, amid humanitarian access and security concerns, says the UN. 'People entering the area are reported to be highly vulnerable, some having walked with children for two weeks,' said Siddartha Shrestha, the UN Children’s Fund (UNICEF) South Sudan chief of communication. At present, about 9,200 people have been registered, states a recent report by the UN Office for the Coordination of Humanitarian Affairs (OCHA).