Aerial video shows the sprawling spread of makeshift tents and shacks at the Balukhali refugee camp in Cox's Bazar, Bangladesh. Released by the Disasters Emergency Committee, the video was shot across several days in October. The arrival of more than half a million Rohingya Muslims from Buddhist-dominated Myanmar since 25 August has put an immense strain on camps in Bangladesh, where there are growing fears of a disease epidemic

• Myanmar treatment of Rohingya looks like 'textbook ethnic cleansing', says UN