A devastating flash flood in Nepal's Bhotekoshi river has left 826 people unaccounted for, with nearly 590 of those being tourists from around the world, according to disaster authorities.

Rescue operations continue in Nepal following a flash flood in the Bhotekoshi river on Wednesday that has left hundreds missing. The National Disaster Risk Reduction and Management Authority reported that 826 individuals remain unaccounted for, including residents, security personnel, and visitors caught in the disaster.

Among those missing are 44 Nepali Army personnel, 28 Nepal Police officers, and 13 Armed Police Force members. Local authorities have identified 162 people out of contact in the Rasuwa and Nuwakot districts, the areas most severely affected by the flooding.

The majority of those missing are tourists. According to the Nepal Tourism Board, 590 tourists have been reported out of contact, comprising 476 foreign nationals and 114 Nepali citizens. Indian tourists account for the largest number of foreign missing persons at 177, followed by American citizens (63), Ukrainians (53), Australians (34), and British nationals (33). Other nationalities among the missing include Canadians (25), Germans (8), Singaporeans (6), and South Africans (6).

Search and rescue teams, including security personnel and local authorities, have been deployed to comb riverbanks and downstream areas in their efforts to locate the missing individuals. The operation remains active as authorities work to account for all those affected by the disaster.