The 2018 Laos dam collapse was the collapse of Saddle Dam D, part of a larger hydroelectric dam system under construction in southeast Laos's Champasak Province, on 23 July 2018. The dam collapse lead to widespread destruction and homelessness among the local population in neighbouring Attapeu Province. As of 25 September, 40 people were confirmed dead, at least 98 more were missing, and 6,600 others were displaced.