UN demands action from Sudan's warring factions over aid theft.

The United Nations has urged Sudan's warring factions to ensure safe passage of humanitarian aid after six trucks were looted and air strikes in Khartoum undermined a supposed truce. The UN aid chief, Martin Griffiths, hopes to have face-to-face meetings with Sudan's warring parties within two to three days to secure guarantees from them for aid convoys to deliver relief supplies. The U.N. has warned that fighting between the army and the paramilitary Rapid Support Forces (RSF), which erupted on April 15, risks causing a humanitarian catastrophe that could spill into other countries.