Refugees from the Nuba Mountains are experiencing scarce supplies of drinking water at Yida camp in South Sudan.

They are traveling long distances and spending hours in queues waiting to collect water from only a few working pumps, said a witness to Radio Tamazuj.

Refugees also complained of the contamination of the water available, fearing a further spread of diseases.

The witness appealed to humanitarian organisations working in water relief to supply assistance to the camp.