A flash flood in central Nepal's Bhote Koshi-Trishuli river basin killed up to 22 people and left nearly 400 missing on Wednesday [5, 8].
The disaster has triggered a diplomatic and humanitarian response between Nepal and India, as a significant number of Indian nationals are among those missing in the high-altitude region.
The water surge occurred around 9 a.m. [9] in the Rasuwa district and adjoining areas near the Tibet border [2]. Reports on the death toll vary across sources, with figures ranging from eight [1] to 22 [5]. At least 36 people were reported injured [6].
Initial reports suggest that an earthquake may have triggered an avalanche, which then released the floodwaters [10]. Local authorities said they are continuing to investigate the exact sequence of events that led to the surge.
Among the missing are 105 Indian citizens [7]. In response to the crisis, Indian Prime Minister Narendra Modi spoke with Nepal Prime Minister Balen Shah to coordinate relief efforts [1]. India is preparing to send relief materials to the affected districts to support the rescue operations.
The impact of the flood extends beyond Nepal's borders. Authorities in the Indian states of Bihar and Uttar Pradesh have been placed on alert as the floodwaters move downstream [1, 3].
Rescue teams are currently operating in the Rasuwa district, where the Bhote Koshi river caused massive destruction to local infrastructure [1]. The search for the nearly 400 missing persons continues as teams navigate the difficult terrain near the border [8].
“A flash flood in central Nepal's Bhote Koshi-Trishuli river basin killed up to 22 people”
The volatility of the Bhote Koshi river basin, combined with the risk of earthquake-triggered landslides, highlights the extreme vulnerability of Nepal's border regions to glacial lake outburst floods and sudden surges. The high number of missing Indian nationals underscores the region's importance as a trekking and transit hub, necessitating tight bilateral disaster-response coordination between Kathmandu and New Delhi.
