Updated

The U.N.'s World Food Program is warning that recent fighting between South Sudan and Sudan could push more people into a hunger crisis situation.

WFP South Sudan country director Chris Nikoi said in a statement Tuesday that the food situation in the border region was already precarious, and that recent border clashes threaten to displace more people.

WFP assisted around 2,000 new arrivals at the Yida refugee camp in South Sudan's Unity State over the past week. The camp houses about 20,000 people.

WFP says it is pre-positioning food supplies in the region in advance of the rainy season, which makes roads impassible. The seasonal rains are expected to begin within weeks.