On the evening July 29, bodies of 22 victims were discovered. The search for one other is underway.
Relevant Lao agencies are investigating the case. Bad weather is predicted to have caused the accident.
The Mi-17 helicopter, with four crewmembers and 19 passengers on board, was en route to the provinces of Xiengkhouang and Houaphan when it lost contact with the Aviation Control Centre shortly after departing from the capital city of Vientiane.