The United Nations has warned that relentless violence in Sudan is deepening a severe humanitarian crisis across Kordofan and Darfur.
UN Secretary-General spokesman Stephane Dujarric said the expanding conflict is putting civilians at greater risk and forcing huge numbers of people to flee.
Around 400,000 people in El Obeid are facing acute food insecurity as displaced families move towards the increasingly crowded regional hub.
In West Jebel Marra, 236,000 displaced people face the immediate threat of starvation as essential aid remains difficult to deliver.
Recent tribal clashes in South Darfur have also forced 4,000 families into makeshift camps without adequate emergency shelter.
Dujarric called for greater protection of civilian infrastructure, which remains caught in the crossfire of the conflict.
The humanitarian response is also severely underfunded, with international partners receiving only 39 percent of the money needed for relief efforts.
The UN has received $1.1 billion of the $2.9 billion required to prevent widespread famine and meet growing humanitarian needs.
Aid agencies are consequently facing major operational shortages, limiting their ability to deliver emergency assistance to communities across Sudan.
UN officials have urged the international community to provide immediate and flexible funding to prevent the worsening crisis from descending into total collapse.
