Khartoum - The United Nations on Tuesday launched a global appeal for $952m to fund Sudan's humanitarian needs in 2016...most of it to help people affected by the deadly conflict in Darfur.The much delayed appeal expects to address the humanitarian needs of up to 4.6 million people, including tens of thousands of South Sudanese refugees who have entered Sudan to escape the violence and food shortages in their country."Women, men, refugees and internally displaced people want us to exert our maximum efforts to provide support to them," said Naeema Al-Gasseer, UN Humanitarian co-ordinator for Sudan.She said the bulk of the funds would be used to meet the humanitarian needs of people in war-torn Darfur.Violence erupted there in 2003 when ethnic minority rebels rose up against President Omar al-Bashir, accusing his Arab-dominated government of marginalising the region.Bashir mounted a brutal counter-insurgency campaign and at least 300 000 people have been killed in the conflict, the UN says. Another 2.5 million have fled their homes.Fierce clashesOfficials said Sudan's main humanitarian needs result from new displacements from conflicts that affect many people's access to food security."Acute malnutrition among children under the age of five is beyond emergency thresholds in several areas of Sudan," Gasseer said.Food insecurity and the raging conflict in neighbouring South Sudan has also pushed refugees into Sudan seeking protection and assistance, she said.As of July 3 before the latest fighting erupted in South Sudan, 79 571 South Sudanese had arrived in Sudan since the start of this year, the UN says.Of this number 53 273 have sought refugee in East Darfur.A fragile ceasefire was holding in South Sudan's capital Juba on Tuesday after four days of fierce clashes killed hundreds of people. Of the $952m sought for Sudan for 2016, $581m would help internally displaced people, $225m for refugees and $146m for vulnerable residents.Officials said they expect to raise more than 50% of the total amount sought.