A massive landslide struck the Mangan district in North Sikkim on Sunday, causing significant debris to fall and partially obstruct the flow of the Teesta and Chyakoong rivers.
Local authorities have deployed disaster response teams to the site, where the blockage has raised concerns about potential flash floods in downstream areas of the Himalayan corridor.
The district administration has issued an urgent alert for residents living along the riverbanks to relocate to higher ground as engineers assess the stability of the debris dam.