Myanmar: Flash Flood Update No. 3

Situation Overview & Humanitarian Needs

Bago, Kayah, Kayin, Magway, Mandalay, Mon, Nay Pyi Taw, Rakhine, Sagaing, eastern and southern Shan, and Tanintharyi regions/states. The most affected areas are Mandalay Region, southern Shan, eastern Bago, Kayin, Mon, and Nay Pyi Taw. As per state-run media, more than 400 fatalities have been reported as of 25 September.2 The flooding and landslides have caused significant damage to homes, household assets, and critical infrastructure, including health facilities, schools, water sources, major highways, bridges, and WASH (Water, Sanitation, and Hygiene) infrastructure. Livelihoods have been destroyed, forcing many families to evacuate. Communication challenges persist due to flooded roads and downed electric lines. While floodwaters have receded in some areas, ongoing rain and riverine conditions continue to threaten some areas with recurrent flooding and potential river overflows.

Around 480,000 people are affected in Mandalay and Magway regions including Nay Pyi Taw. In Rakhine, more than 40,000 people from villages including IDPs locations in Mrauk U, and Myinbya and Tounangoup townships are affected. In Bago east, more than 180,000 people are affected while in eastern and southern Shan, flooding and landslides have affected over 100,000 people. In Mon and Kayin states, affected figures are over 200,000.3 Across all affected areas, critical needs include access to safe drinking water, hygiene items, medicine, food, shelter, and humanitarian cash assistance.

Acute watery diarrhoea, dengue fever, malaria, cholera and measles are already a threat to children in Myanmar. The ongoing flooding is likely to worsen the spread of waterborne diseases and increasing the need to provide urgent health, nutrition and WASH services. Despite ongoing rapid response efforts, delivering essential WASH assistance—such as clean water, sanitation, hygiene supplies, menstrual hygiene management, and shelter— remains a significant challenge. Numerous schools were forced to close or are being used as shelters, affecting the access to education for thousands of children. Child Protection concerns are critical in the aftermath of the floods, with risks such as family separation, psychological distress, exposure to explosive ordnance, and physical dangers, including drowning. Initial assessments indicate that more than 270,000 children and over 180,000 parents and caregivers are in urgent need of child protection services.