Seeking refuge in South Sudan.
Facing hunger, and thirst, tens of thousands of people are pouring into South Sudan, fleeing a vicious scorched earth counter-insurgency operation by the army.
Many have lost everything.
(SOUNDBITE) (Ingassana) SUDAN REFUGEE AND MOTHER OF THE SEVERELY MALNOURISHED TWINS, SAURA MAYAS, SAYING:
"In the afternoon, after lunch, the plane came and bombed the village, then the soldiers started to burn all the houses and the people ran into the forest."
Aid agencies are now scrambling to find help for the new influx from the Blue Nile in Sudan, who join another 70,000 refugees who fled the conflict earlier in the year.
Tara Newell is from Doctors without Borders.
(SOUNDBITE) (English) MEDECINS SANS FRONTIERES EMERGENCY COORDINATOR, TARA NEWELL, SAYING:
"We see people dying every day. We see people dying of malnutrition. We see people dying of dehydration."
The insurgents in Blue Nile state fought alongside the southern rebels during the 22-year civil war that ended in 2005. But they were marooned on the north side of the border at partition.
Khartoum tried to disarm the insurgent forces last September, re-igniting a conflict that has cost some their lives and many their homes.
Deborah Lutterbeck, Reuters