KATHMANDU, Nepal (Diya TV) — Two U.S. citizens traveling toward Mount Kailash remain missing after a deadly flash flood struck the Nepal-Tibet border region. Their daughter has made an urgent appeal for information as rescue teams search areas hit by mudslides and flooding.

Ramesh Sharma, 65, and Neelam Sharma, 64, were traveling through the Himalayan region when the disaster struck Wednesday. Their daughter, Dr. Radhika Sharma, said she has not been able to contact them since the flooding.

Sharma appealed for information from anyone with contacts in Nepal, Gyirong and Tibet. She also asked hospitals, rescue teams, government agencies and media organizations to help locate her parents.

“My parents, Ramesh Sharma (65 Male) and Neelam Sharma (64 Female) are currently missing and unaccounted for following the flood at the Nepal-Tibet/China border,” she wrote in an Instagram post.

She also asked people with local or international contacts to share any information that could help locate the couple.

The Sharmas went missing as the region faced one of its deadliest disasters in years. According to Reuters, a wall of mud and rock collapsed into a river along the Nepal-China border on Aug. 26. The collapse sent a powerful surge of water through nearby settlements, roads and other infrastructure.

Nepalese authorities reported that more than 400 tourists were missing after the flash floods. The group includes hundreds of foreign nationals.

Nepal police had recovered 157 bodies by late Wednesday, Reuters reported. Meanwhile, rescue teams continued their search despite severe damage across the affected areas.

The Nepal Tourism Board later said 65 American travelers remained missing after the floods. It reported 644 missing travelers overall. In addition, the number of missing people across Nepal reached 826.

China also reported a large number of missing people on the Tibetan side. Authorities said 558 people were missing in the area. The reported death toll stood at 177 in Nepal and three in China.

Rescue teams face major obstacles in reaching remote areas. Floodwaters destroyed roads and damaged bridges. Communications outages also made it harder for families to contact travelers and authorities.

Helicopters have faced difficulties reaching some of the worst-hit locations. As a result, rescue workers have had to work through difficult terrain and damaged infrastructure.

On the Tibetan side, Chinese authorities reported deaths and hundreds of missing people in Gyirong County. A mudslide hit the border area and caused widespread damage.

The disaster has also raised concerns for international travelers visiting the region. Mount Kailash attracts pilgrims and tourists from around the world. Many visitors travel through remote parts of Nepal and Tibet before reaching the mountain.

The U.S. State Department said it knows about Americans affected by the flooding. It also said it is working with local authorities and tour operators to assist U.S. citizens in the region.

U.S. citizens in affected areas should follow local emergency instructions and monitor official updates.

For Radhika Sharma, however, the immediate priority remains finding her parents. She continues to seek information from people who may have contacts near the Nepal-Tibet border.

As rescue operations continue, families across the region remain anxious for news about missing relatives and travelers. The search for Ramesh and Neelam Sharma remains part of a much wider effort to locate people caught in the devastating Himalayan floods.