Following a devastating flash flood in Nepal and Tibet, experts are concerned that debris accumulation could trigger another flooding event if river blockages form.

The International Centre for Integrated Mountain Development has issued a warning about potential secondary flooding risks in the aftermath of Wednesday's major flash flood that affected Nepal and Tibet. The assessment highlights concerns that debris washed into river systems during the initial disaster could create new hazards downstream.

According to the research organization, experts are currently investigating whether sections of the Trishuli River have become blocked by accumulated debris. Should such blockages occur, they could form what researchers describe as a landslide dam, potentially triggering a second major flooding event in the affected regions.

Authorities and scientific teams are actively working to monitor and evaluate the characteristics of any blockages that may have formed, including their size, location, and structural stability. The ongoing assessment is critical for determining the immediate risks to communities in the river valleys and informing emergency preparedness measures. The situation underscores the complex challenges that can follow major natural disasters in mountainous terrain, where initial impacts can set conditions for additional hazards.