A Rohingya refugee reacts while holding his dead son after crossing the Naf river from Myanmar into Bangladesh in Whaikhyang on October 9, 2017. The arrival of Rohingya refugees who have fled an army crackdown in Myanmar's troubled Rakhine state since August 25, 2017 has put an immense strain on already packed camps in Bangladesh for 800,000-plus Rohingya Muslims as it was dangerous since overcrowding could heighten the risks of deadly diseases spreading quickly.