UN backs 6000 more troops for South Sudan THE United Nations Security Council has agreed to almost double the size of the peacekeeping force in troubled South Sudan, adding nearly 6000 extra soldiers and police. UN chief Ban Ki-moon had called for the UNMISS force to be increased to counter a major outbreak of violence, and member states agreed to increase the military contingent to 12,500 troops. A parallel civilian police deployment will reach 1323. But the vote only increased the maximum permitted size of the force. Member states must still commit more troops to UN command, and Ban warned this "will not happen overnight." In the meantime, Council members demanded an end to hostilities between forces loyal to South Sudan's President Salva Kiir and to his rival deposed vice president Riek Machar. Their statement expressed "grave alarm and concern regarding the rapidly deteriorating security and humanitarian crisis" and warned that those responsible for war crimes would be held responsible. The move comes after the UN revealed its staff had found a mass grave in Unity State. UN rights chief Navi Pillay says a mass grave filled with around 35 bodies was found in the rebel-held town of Bentiu today, while there were at least two other mass graves in the capital Juba.