The president of South Sudan Salva Kiir has called for an end to tribal atrocities as clashes continued between Dinka and Nuer ethnic groups.
"Innocent people have been wantonly killed. People are targeting others because of their tribal affiliation. This is unacceptable," Kiir said.
"These atrocities recurring by now have to cease immediately."
Meanwhile, the UN Security Council has decided to double the number of peace keepers in the country to 12,500 troops.
Toby Lanzer, the UN’s humanitarian coordinator for South Sudan, said he had witnessed “some of the most horrible things that one can imagine” during a visit to Bor, a city north of the capital Juba that fell to the rebels last week, before Kiir claimed its recapture on Tuesday.