(UN News Centre) – The security situation in South Sudan deteriorated further during late April and early May, the head of the United Nations mission in the country warned today as she briefed the Security Council on the “very worrying” developments that have had a devastating effect on civilians. “The untold suffering of the people of South Sudan must stop,” Ellen Margrethe Løj, head of the UN Mission (UNMISS) declared today, as she presented to the Council the latest report of the Secretary-General.