Following days of heavy rainfall due to the passage of Son-Tinh tropical storm over the country, a hydro-power dam under construction overflowed in Attapeu province, releasing 5 billion cubic metres of water. 16,256 people living in eight downstream villages of Sanamxay District were affected. Around 223 houses were partially damaged and at least 20 are completely damaged. 26 people are confirmed dead and more than 130 people are missing. These events took place while the monsoon season is ongoing which could exacerbate the situation and hamper the recovery of the affected communities.