A total of 143 locations in 85 sites were assessed between 5 and 21 September 2017. 607,735 UMNs were identified in four upazilas of Cox’s Bazar District. Among those assessed, 53% are women and girls. A total of 429,308 UMNs have arrived since 25 August 2017 due to current ongoing outbreaks of violence in the Rakhine State of Myanmar. This represents a 3.7-fold increase since the last reporting period in July 2017 (164,000 displaced individuals).