Armed gangs in Haiti target U.S. Embassy vehicles, UN chopper in escalation of attacks Miami HeraldGangs in Haiti open fire and hit a UN helicopter midair as violence surges The Associated PressUS to evacuate 20 embassy staff from Haiti following car attack and intensifying gang violence, say sources CNNGang violence in the Caribbean reaches farther than Haiti ACLEDUNICEF Executive Director Catherine Russell briefing to the United Nations Security Council on the humanitarian situation in Haiti UNICEF