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Worsening conflict in Darfur and an influx of people fleeing war in South Sudan helped push to almost seven million the number needing aid in Sudan, the United Nations said on Wednesday.
The figure is a jump from the UN’s previous estimate of 6.1 million, issued last year.
Aid agencies urgently need funding “to assist 6.9 million people in need of humanitarian assistance (roughly 20 percent of Sudan's population),” a UN statement said.
“The Sudan humanitarian response plan has been revised to reflect the deteriorating situation in Darfur, the influx of new refugees from South Sudan, and Sudan's acute malnutrition crisis,” Ali Al-Za'tari, the UN's Sudan humanitarian co-ordinator, said in the statement.
Violence throughout Darfur reached its worst levels in a decade this year, displacing about 300 000 people from late February to mid-April.
The latest displacements bring to 2.2 million the number uprooted and living in camps in Darfur, where conflict began 11 years ago.
Adding to the humanitarian burden, more than 85 000 people have sought refuge over the border in Sudan since December when a power struggle between South Sudan's President Salva Kiir and his former deputy Riek Machar spiralled into brutal ethnic conflict that killed thousands.
There has also been “an increase in people suffering from acute malnutrition, especially children”, after a comprehensive Sudan-wide survey, the UN said.
A three-year war in South Kordofan state and a smaller-scale conflict in Blue Nile have affected more than one million people.
Despite the humanitarian needs, aid agencies have faced obstacles to their work in the country.
The government has controlled the movement of aid groups in South Kordofan and Blue Nile. Relief agencies have had no access into South Kordofan's rebel areas from within Sudan since 2011.
Sudan's Humanitarian Aid Commission has said the country is a partner of the international community and wants to ensure the safety of aid workers.
In the latest restriction, Doctors Without Borders (MSF) said in early July that Sudanese authorities blocked an MSF emergency team from travelling to Darfur to help thousands of recently displaced people who were barely surviving.
In February Khartoum suspended operations of the International Committee of the Red Cross, which provided health and other services in Darfur. - Sapa-AFP