The death toll from Wednesday’s devastating flash floods in Nepal has risen to 616, according to police, while at least seven people have died in Tibet and 554 remain missing.

Nepal’s disaster relief agency says at least 1,924 people are still missing in the country. The figure includes at least 517 foreign nationals, although officials have warned that the situation remains fluid and casualty figures differ between authorities.

Reports from Tibet are based on information released by Chinese state media. The BBC’s China correspondent has explained the challenges of verifying developments in the region independently.

The floods have caused widespread destruction, tearing through homes and roads and destroying a key border crossing between Nepal and Tibet.

Local officials told the BBC that a collapsed glacier triggered the massive flood wave, sending a surge of water through communities and infrastructure in its path.

Among those anxiously awaiting news of loved ones is Prajval Haldia, who spoke to the BBC from south London. Haldia said he was “hoping and really praying” for the safe return of his parents, who were in the affected area when the floods struck.

Rescue and search operations are continuing as authorities work to locate those still missing and assess the full extent of the disaster.