Beginning July 4, 2026, persistent heavy monsoon rainfall and mountain runoff caused severe flooding, waterlogging, and landslides across multiple regions, including the Chattogram division. The disaster, exacerbated by extreme weather and human activities such as hill cutting and deforestation, has caused widespread devastation. Government authorities have coordinated massive relief and medical support. Nationwide, the impact includes 59 deaths (54 confirmed in Chattogram division), 95 injuries, and over 1.1 million people affected. During the crisis, 365 newborns were safely delivered in Chattogram health complexes. The WHO issued a health advisory regarding waterborne diseases, which are being monitored by health authorities.
Flood category
Flash Flood
River
Sangu, Matamuhuri, Kushiyara, Manu, Khowai, Dolu, Karnaphuli, Surma, Sari, Goyain, Piyain
Trigger / cause
Continuous heavy rainfall, flooding, hill cutting, and deforestation.
Disease
diarrhea
Notes
Health authorities are monitoring for waterborne diseases such as diarrhea and cholera, following the WHO health advisory.
| Scope | Source wording |
|---|---|
| 59 · upazilla | ক্ষতিগ্রস্ত জেলাসমূহের ৫৯টি উপজেলা |
| 12 · district | চট্টগ্রাম, কক্সবাজার, বান্দরবান, রাঙামাটি, খাগড়াছড়ি, ফেনী, নোয়াখালী, লক্ষ্মীপুর, চাঁদপুর, কুমিল্লা, ব্রাহ্মণবাড়িয়া ও রংপুর |
| country | দেশজুড়ে |
| Name/Occupation | Age/Gender | Status | Injury description |
|---|---|---|---|
| Mohammad Ashik | 7 | Dead | — |
| Mohammad Miraj | 3 | Dead | — |
First responder for fire, rescue, and medical emergencies
Fire service personnel rescued a pregnant woman in Lohagara on July 9, who later gave birth.
District or Upazila level government authorities
The government has opened 1,131 shelters, allocated 21 million BDT, and initiated a rehabilitation program. Rescue operations supported by Army, BGB, and Coast Guard.
Shelters opened: 1,131
Relief amount (BDT): ৳21,000,000 BDT
Non-governmental organizations working in humanitarian aid
Bangladesh Red Crescent Society distributed over 2,500 food packages, provided medical support to 2,000 people, and delivered 37,000 liters of clean water.
Other response agencies
Provided $100,000 in emergency financial aid to support ongoing relief efforts.