An 'exceptional' airlift of almost 12,000 South Sudanese ended with a final flight from Khartoum on Wednesday but thousands more continue to live in makeshift conditions while they, too, await transport to the South, officials said. One hundred Southerners took the last chartered plane from Khartoum to South Sudan's capital Juba, Jill Helke, chief of the International Organisation for Migration (IOM) in Sudan, said.