Bangladesh's mega refugee camp plan 'dangerous': UN official A top UN official has said Bangladesh's plan to build the world's biggest refugee camp for 800,000-plus Rohingya Muslims was dangerous because overcrowding could heighten the risks of deadly diseases spreading quickly. The arrival of more than half a million Rohingya refugees who have fled an army crackdown in Myanmar's troubled Rakhine state since August 25 has put an immense strain on already packed camps in Bangladesh. IMAGES of refugees in Cox's Bazar