Drone imagery captured by the International Organization of Migration (IOM) at the Rohingya refugee camp in Cox’s Bazar, Bangladesh, shows the scale and growth of the camp since 2017.

The video above, along with drone imagery on the IOM’s Needs and Population Monitoring portal, show a sprawling city-sized camp in a site that, prior to 2017, was unpopulated. The UNHCR estimates the current population of the camp at almost 900,000 people. Credit: International Organization of Migration via Storyful