An estimated 60 per cent of the Rohingyas arriving in Bangladesh are children, Dujarric said. The crisis and refugee exodus began on August 25, when Rohingya insurgents attacked police posts. Myanmar's military retaliated with "clearance operations" to root out the rebels, but the fleeing Rohingya say Myanmar soldiers shot indiscriminately, burned their homes and warned them to leave or die. Others have said they were attacked by Buddhist mobs. Hundreds have died, mostly Rohingya, and some of the refugees have needed treatment for bullet wounds.