Mogadishu , Somalia ( CNN ) -- At least seven Somali civilians were killed Friday morning when people trying to take food clashed with government troops at the Badbaado refugee camp in Mogadishu , a witness told CNN . Mahamed Ali , a refugee at the camp , said several other people were wounded in the incident , which was sparked when food supplies were taken . David Orr , a spokesman for the World Food Programme in east , central and southern Africa , said the organization was working to clarify what happened . `` This incident highlights the challenges that humanitarian agencies face in trying to deliver assistance in this difficult environment , '' he told CNN . The incident came a day after the International Committee of the Red Cross said it was ratcheting up emergency operations to help an additional 1.1 million people suffering from famine under drought and conflict . The agency is asking donors for $ 87 million more to address the crisis . `` The move comes in response to a situation that is becoming ever more desperate , '' said Jakob Kellenberger , the president of the agency . `` Hundreds of thousands of Somalis face life-threatening food and water shortages . '' The African Union , however , postponed its donor conference by two weeks , without giving any reasons . The meeting planned for August 9 now will take place August 25 . The United Nations estimates that 29,000 children have perished in the past month . Valerie Amos , the under-secretary for general and emergency relief , told CNN Thursday that 600,000 may die . She urged support for the aid organizations that are able to operate in southern Somalia , in areas controlled by rebel Al-Shabaab militants , who have banned international agencies . Al-Shabaab launched a Ramadan offensive Monday amid the spreading famine , with heavy fighting reported in northeastern Mogadishu , according to African Union officials . The United Nations declared famine in three more regions of Somalia on Wednesday -- the war-ravaged capital , Mogadishu , as well as the Ifgooye corridor and the Shabelle regions west of Mogadishu . The human catastrophe was triggered by the worst drought in more than a half-century and compounded by decades of conflict , high inflation and increasing global food and fuel prices . The United Nations issued a famine declaration for two districts of southern Somalia in June . In all , about 12 million people in the Horn of Africa region need assistance . Somalia is the worst hit .
Several others were wounded , the witness says . The incident reportedly occurred Friday morning . A The Red Cross official says an additional 1.1 million children may die . The Red Cross is asking donors for $ 87 million more for Shabelle .