Most hospitals in the area were destroyed, which made things much worse. The headquarters of the United Nations Stabilization Mission in Haiti (MINUSTAH) in Port-au-Prince collapsed. The Mission's Chief (Hédi Annabi), his deputy, and the acting police commissioner were killed in the quake. Elisabeth Byrs of the United Nations (UN) called the earthquake the worst disaster the United Nations had ever had. This was not just because of the property damage and deaths from the earthquake. The roads, phone lines and government buildings of the UN in Haiti and the Haitian government were also destroyed, so trying to just get organized and get help to the people was a real problem. So many people died in such a short time, that they used dump trucks to haul the dead bodies to mass graves.