The United Nations warned of the situation in South Sudan, saying at least 45,000 civilians have sought protection at badly overstretched UN bases amid brutal fighting that has spread to half of the young nation’s 10 states.

The United Nations warned of the situation in South Sudan, saying at least 45,000 civilians have sought protection at badly overstretched UN bases amid brutal fighting that has spread to half of the young nation's 10 states.

At least 20,000 people are sheltering at two UN bases in the capital Juba, while 17,000 are sheltering in the UN base in the rebel-held town of Bor, state capital of powder-keg eastern Jonglei state.

A further 7,000 people are sheltering at the UN base in Bentiu, state capital of the oil-producing Unity state -- also in rebel hands -- the UN added, while "sporadic fighting" has been reported in Upper Nile, another oil-rich state.

The UN said at least 45,000 people were sheltering at those and other bases.
"The estimated number of people displaced in the current crisis in South Sudan has risen to 81,000," the UN Office for the Coordination of Humanitarian Affairs (OCHA) said in its latest situation report.

"Given the limited access to civilians outside population centres, the number is likely to be significantly higher."

The official toll is 500 dead, although the real figure is believed to be far higher, aid workers say. Hundreds of thousands of others are believed have fled to the countryside, prompting warnings of an imminent humanitarian disaster.

"There are credible reports of grave abuses committed against civilians in different parts of the country, including killings," the UN added.

The town of Bor, located just 200 kilometres (125 miles) north of Juba, is an area of special concern, with the army saying it is preparing to launch an assault to recapture it since they lost control on Wednesday.
The situation in the African country has worsened with fierce clashes are taking place since Kiir accused Machar of trying to launch a coup.