At least 14 people have been killed and 102 are still missing in the north-east Indian state of Sikkim after heavy rain caused a glacial lake to burst its banks, triggering flash floods down a mountain valley. The disaster, which took place on Wednesday, has affected more than 22,000 people, according to the authorities, and 22 army personnel are among the missing. It has also left over 3,000 tourists stranded after the floods washed away the main highways and bridges. The catastrophic overflow of Lhonak Lake took place after five times the usual amount of rain fell on the state…