A massive glacial cloudburst has wreaked havoc, leading to a torrential flash flood in north Sikkim. As a result, the Teesta River has been flowing at a danger mark of 298.4 metres. Rescue operations have been ongoing for people residing in the low-lying areas. According to the Central Water Commission, the cloudburst took place at Lhonak Lake in north Sikkim, affecting Gangtok and Pakyong (east Sikkim), and Mangan (north Sikkim), with the latter being the worst hit.