Mudslides engulfed buildings near the Nepal-China border after a 4.4-magnitude earthquake, with at least 95 confirmed dead and hundreds of tourists reported missing.
The annual food fight in Buñol draws international crowds, inspired in part by a Bollywood film.
Rescue efforts are underway as officials work to determine the full extent of the disaster, which has impacted foreign nationals from over two dozen countries.
A torrent of water and mud destroyed an entire settlement near the Nepal-Tibet border, leaving dozens dead and hundreds unaccounted for.
Surveillance video shows people scrambling to escape as a massive mudslide sweeps over a border crossing.
Police intervened after the boy was left alone at 8,000 feet in deteriorating weather conditions.
Emergency services have intensified search and rescue operations in affected areas.
Thirty-three British nationals are among 403 people feared missing following a flash flood and mudslides near the Nepal-Tibet border.
Fire chiefs reveal agricultural machinery use led to blazes that destroyed 19 homes and damaged 18 others during Britain's hottest day.