(UN News Centre) – Expressing deep concern over the impact of a series of bureaucratic impediments and access constraints on relief operations, a senior United Nations humanitarian official in South Sudan has called on all parties to allow free, safe and unhindered humanitarian access to the people in need. “Humanitarian organizations in South Sudan are striving every day to save lives and alleviate suffering across this country,” said Eugene Owusu, Humanitarian Coordinator for South Sudan in a news release issued by the UN Office for the Coordination of Humanitarian Affairs (OCHA).