Washington DC: The death toll from Nepal's devastating flash floods has risen to 392, with hundreds of people still missing, as US President Donald Trump offered Nepal "any help that they need" and said Washington was working to locate American citizens affected by the disaster.

The death toll from the catastrophic floods in Nepal has risen to 392, while hundreds of people remain missing after the Bhote Koshi flood in Rasuwa district.

The disaster has triggered large-scale search-and-rescue operations across the affected areas, with authorities working to locate missing people, assist those stranded and restore damaged infrastructure.

Of the people reported missing, a large number are foreign nationals. Authorities have also reported Nepali citizens living abroad among those unaccounted for.

Trump offers Nepal US assistance

US President Donald Trump said Washington had contacted Nepal's leadership and offered to provide whatever assistance the country needs.

"We've called Nepal, and we've offered any help that they need," Trump said, describing the destruction caused by the floods as severe.

He said the US had a "very good relationship" with Nepal and said the scale of the destruction was unlike anything he had seen.

Trump also said dozens of Americans were in the affected areas and that the US had not yet received a complete list of those affected.

90 Americans reported missing

The US State Department has said 90 Americans are reported missing following the floods in Nepal.

Former White House Press Secretary Karoline Leavitt said the immediate priority for the administration was ensuring the safety of US citizens in the affected areas.

The US Embassy in Kathmandu is working with local authorities to locate and assist American citizens.

US announces $500,000 assistance

The US State Department has announced $500,000 in assistance through its global award with Catholic Relief Services.

The funding is intended to support emergency shelter, relief supplies and water, sanitation and hygiene assistance for communities affected by the floods.

The State Department has also deployed a disaster response adviser to support the response effort.

Foreign nationals among those missing

Nepal's latest disaster figures indicate that 517 of those reported missing are foreign nationals, while another 127 are Nepali citizens living abroad who had travelled to the country.

Nepal's Ministry of Foreign Affairs has established an Emergency Response Team to coordinate search-and-rescue operations, verify information and provide consular assistance to foreign nationals affected by the disaster.

Why the floods were so destructive

The flash floods struck after a major glacier-related event near the Nepal-China border sent an enormous volume of water, mud and debris downstream.

The force of the floodwaters destroyed buildings, roads and bridges and left large quantities of debris across affected settlements.

The disaster has also severely disrupted transport links, making it difficult for rescue teams to reach some areas.

The disaster has prompted India to increase its support for Nepal while placing vulnerable areas along the India-Nepal border on alert.

Uttar Pradesh has intensified monitoring of rivers flowing downstream from Nepal, particularly in districts including Maharajganj and Kushinagar.

India has also deployed rescue personnel and equipment to assist operations in Nepal, while authorities in downstream Indian districts continue monitoring river levels.

International rescue effort

Nepal has mobilised thousands of security personnel for search-and-rescue operations. Helicopters have been used to evacuate people from inaccessible areas, while rescue teams continue searching for those still missing.

The scale of the international response reflects the number of foreign nationals caught up in the disaster and the extensive damage to roads and bridges.

With the death toll continuing to rise and hundreds still unaccounted for, the immediate priority remains locating survivors and providing emergency assistance to affected communities.