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Sudan and newly independent South Sudan appear to be complying with a U.N. cease-fire ultimatum that came into force on Friday. This has brought a halt to weeks of deadly border clashes over oil and territory. But within Sudan, a separate conflict, an uprising against the government in Khartoum continues to rage in the Nuba Mountains region. It has forced tens of thousands of refugees to flee into South Sudan.
NPR's Ofeibea Quist-Arcton reports.
(SOUNDBITE OF A CROWD)
OFEIBEA QUIST-ARCTON, BYLINE: This is Yida refugee camp and this is where people from the Nuba Mountain area of Sudan, i.e., the north, are seeking refuge across the border in South Sudan. They say they are being bombed in the Nuba Mountains in the south Kordofan area They're here in the thousands, and we're being told that more and more are crossing each day.
RANIA MAHMOUD: (Foreign language spoken)
QUIST-ARCTON: Rania Mahmoud arrived at the camp over the weekend. Dressed in lime green, she stands out against the dusty expanse of the camp. Mahmoud describes how bombs were raining down on the Nuba Mountains. So she and six others, including her children, tramped for five days to cross the border into South Sudan.
MAHMOUD: (Through Translator) Because of the war, plus the fact that there was no more food, we had to run away. The enemy was bombing us. You would hear boom and we'd all have to hide. We were really frightened.
QUIST-ARCTON: The Nuba Mountains, where the refugees are coming from, is in Sudan's last remaining oil-producing state. Communities there fought alongside the South during the long civil war. They say they're being punished for that by Sudanese government troops. Sudan claims pro-South rebels operate in the region. Human rights' campaigners warn of ethnic cleansing by Sudan.
LISE GRANDE: In the last couple of days, we're seeing up to 500, 550 people every single day crossing the border now.
QUIST-ARCTON: Lise Grande is the U.N. humanitarian coordinator for South Sudan, visiting Yida camp with its population of more than 27,000 refugees since it was set up in August last year.
GRANDE: What they're telling us is that there's hunger on the other side, that they're coming into this refugee area because they're hungry.
QUIST-ARCTON: Resources are tightly stretched and the World Food Program's representative in South Sudan, Chris Nikoi, says stocking supplies at Yida has been delayed by recent clashes over oil at the north-south border.
CHRIS NIKOI: But we are confident that during the month of May, we will get the food here, enough to make sure that these people are fed right through the rainy season.
QUIST-ARCTON: Safety and security also remain key concerns. Yida is easily within shelling range and was bombed in November. Local Member of Parliament Omer Ahmed Nogra showed us a bomb that was dropped near the school.
OMER AHMED NOGRA: We are afraid because everyone now has a hole near his house. We are afraid of this.
QUIST-ARCTON: But the refugees are reluctant to be relocated. That means more and more infants with malnutrition arrive every day, says Kelly Nau. She's the health and nutrition coordinator for Samaritan's Purse.
KELLY NAU: Of the children under five, we've never seen this many severely malnourished in the history of the camp so far.
QUIST-ARCTON: Nau describes tales of desperation from the refugees.
NAU: These are people who mostly have been hiding out in caves to escape aerial bombardment and ground fighting. So these people are telling me that they're eating leaves and boiling seeds, and they've come here just in search of food.
QUIST-ARCTON: South Sudan's Deputy Minister for Humanitarian Affairs Sabrina Dario Lokolong, says she hopes both her country and neighboring Sudan will respect a U.N. resolution seeking to end their conflicts.
SABRINA DARIO LOKOLONG: This issue should really come to an end. Children, mothers, coming all the way here for safety. These are innocent civilians, they shouldn't be targeted.
QUIST-ARCTON: If there has to be war, says the minister, let it be at the front, not against the blameless.
Ofeibea Quist-Arcton, NPR News, Yida, South Sudan.