Humanitarian personnel in South Sudan operate against a backdrop of protracted conflict, chronic poverty, economic crisis, severe food shortages and weakened infrastructure.

"There is a risk of genocide in South Sudan. Write it in large letters, so that someone from the international community intervenes before it is too late," is appeal from local Church.

1.5 million people have been displaced and 4 million face hunger.

One million displaced within the country and 378,000 seeking refuge in Ethiopia, Kenya, Sudan and Uganda.

UN base in Jonglei state besieged as five days of violence leaves over 500 dead.