Three days of fighting in the Somali capital Mogadishu displaced 88,000 people from their homes, adding to hundreds of thousands who fled violence earlier this year, the United Nations said on Thursday. In an unprecedented statement, 39 aid agencies also said they could not respond effectively to Somalia’s unfolding “humanitarian catastrophe” due to insecurity in the Horn of Africa nation that has been in turmoil and anarchy since 1991. “Almost 90,000 people have fled Mogadishu or moved to safer areas within the city to escape the latest outbreak of violence,” the UN refugee agency UNHCR said of the fighting between Sunday and Monday. That violence killed several dozen people, residents say. “You see groups of people spontaneously protesting, crying for help from the international community and wondering how long Mogadishu will keep on being destroyed,” UNHCR quoted a staff member in Somalia as saying.