Port-au-Prince earthquake survivors roamed the streets with guns and machetes Saturday as temperatures in the Caribbean island continued to rise. Looting and occasional violence carried on as thousands of American forces prepared to deploy. U.N. officials have warned aid organizations to obtain extra security before traveling. A teenager working for music star Wyclef Jean's charity was shot and killed. The Telegraph reports that one person was spotted removing a corpse from a coffin in order to steal the wooden box. "People are hungry, thirsty. They are left on their own," one man told the British newspaper. "It is increasingly dangerous. The police doesn't exist, people are doing what they want."