Khartoum - A governor in a Sudanese border state has set a one-week deadline for 12 000 ethnic South Sudanese gathered south of Khartoum to leave the country, state news agency Suna reported on Sunday.
"The wali (governor) of White Nile state, Yusuf al-Shambali, confirmed that he has set May 5 as the deadline for the Southerners waiting in Kosti," the statement said.
"The presence of Southerners in Kosti threatens the security and the environment for Kosti citizens."
Some South Sudanese have been living in the town for months, in makeshift shelters or barn-like buildings, while they await a trip by barge down the White Nile River to South Sudan.
They are among an estimated 350 000 ethnic Southerners who the South Sudanese embassy estimates remain in the north after an April 8 deadline for them to either formalise their status or leave Sudan.