Floods have devastated the Nepal-Tibet border region which have destroyed towns and swept away bridges.
Hundreds of people have been reported dead and hundreds more missing.
BBC Verify has traced the path of the deadly flash flood using verified videos and satellite imagery. Merlyn Thomas reports.
Produced by Aisha Sembhi. Graphics by Mesut Ersoz. Verification by Emma Pengelly, Paul Brown, Charlotte Green, Shayan Sardarizadeh, Yi Ma and Benedict Garman.