NUWAKOT, Nepal (AFP) — Rescue teams rushed Thursday to find hundreds of people missing, including an Israeli, on the Nepal-Tibet border in flash floods and landslides that killed at least 165 and swept away entire villages.

A terrifying clip of surveillance video from the Chinese side of the frontier shows a massive wall of mud and debris crashing over a building several stories high on Wednesday morning, engulfing it as dozens of people ran for their lives below. The surge swept away buses and cars like they were toys.

Many of the missing are foreign tourists, officials said of the disaster, which the US Geological Survey said was caused by a glacial collapse that sent a flow of debris engulfing areas along the way.

According to the Ynet news site, the Israeli citizen reported missing is around 60 years old and crossed the border from Tibet the morning of the flood.

His condition and whereabouts remain unknown.