According to National Disaster Risk Reduction and Management Authority (NDRRMA) Director General Dinesh Bhatta, the flood might be caused by the outburst of a glacial lake situated near the Nepal-China border, as there was no excessive rainfall at that time on both sides of the border.

Nepal’s mountainous terrain is vulnerable to flash floods. Disasters have gotten deadlier in recent years in part because of changing climate patterns. Erratic rainfall, floods, landslides, avalanches and glacial lake outbursts are becoming more serious.

The floods hit early Tuesday and caused extensive damage to the Nepal-China Friendship Bridge and the surrounding infrastructure, including the customs yard where hundreds of vehicles and cargo contai