Vehicles submerged, highway washed away, Army personnel missing: Flash floods wreak havoc in Sikkim

At least three people have died and 23 army personnel are missing following the flash floods in North Sikkim. ((PTI Photo)

The flood was triggered by a sudden cloud burst over Lhonak lake in north Sikkim. (PTI Photo)

Water from the Chungthang dam led to a sudden increase in water levels up to 15-20 feet high downstream. (PTI Photo)

The flash flood is believed to have started at 1:30 am on Wednesday, officials told PTI. (PTI Photo)

Sikkim Chief Minister Prem Singh Tamang takes stock of the situation after flash floods. (PTI Photo)

A flood-affected locality at Singtam in Gangtok district, Sikkim. (PTI Photo)

Defence PRO, Guwahati told PTI, “Some army establishments along the valley have been affected and efforts are on to confirm details." Several photos and videos posted online shows NH 10 being washed away by the flood. (PTI Photo)

Four relief camps have been set up at Singtam and about 270 people have been shifted to the relief camp at Singtam Senior Secondary School. (PTI Photo)

School students in n Jammu pray for 23 Army personnel missing in flash flood in Sikkim. (PTI Photo)