The United Nations High Commissioner for Refugees (UNHCR) released aerial footage showing thousands of Rohingya Muslims after they crossed the Naf river into Bangladesh.
The video shot over the Palongkhali area shows refugees arriving by boat and walking through flooded fields.
They join some 536,000 Rohingya Muslims who have fled Myanmar since August 25, when insurgent attacks sparked a ferocious military response, with the fleeing people accusing security forces of arson, killings and rape.
Read more: Sheikh Mohammed bin Rashid orders more relief for Rohingya refugees