NDMA asks Sikkim govt to prepare detailed report on flood
Floods caused by the Lhonak glacial lake outburst and consequent Chungthang dam breach in Sikkim

Gangtok: South Lhonak Lake, situated in North West Sikkim, burst due to incessant monsoon rainfall in the early hours of Wednesday, around 12:40 am, causing a flash flood in the region. Areas near the Teesta river have been put on high alert.

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Initial information suggested a cloud burst occurred in South Lhonak Lake, but later it was revealed that the lake, which had been protected by a special embankment to prevent flash floods, had erupted in a glacial lake outburst.

The resulting flash flood made its way through the River Teesta, sweeping away the Indreni Bridge in Singtam town, which is about 30 km from Gangtok, as reported by the Gangtok District Administration. Another connecting bridge in Balutar hamlet was also swept away around 4 am. So far, no casualties have been reported.

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