SINGAPORE, Aug 29 — The families of Singaporeans missing after the devastating Nepal-Tibet floods are desperate for news of their loved ones, with one relative saying they have been left confused and without clear updates on rescue efforts.

CNA, a Singapore-based news outlet, reported today that nine Singaporeans are among hundreds of people missing after a wall of ice, mud and rock collapsed into a mountain river on Wednesday, triggering catastrophic flooding along the Nepal-Tibet border.

Among them are Singaporean couple Shubakshi Rawla, 49, and Sumit Rawla, 53, who were last seen at a tea stall near the Rasuwagadhi border area while on a Kailash Yatra pilgrimage.

Their daughter Parnika Rawla, 20, said she last spoke to her parents by FaceTime at about 6.40am on Wednesday, shortly after she landed in New Delhi.

“Nobody’s telling us anything. We don’t know what’s going on. We don’t know if they’re rescued, where they are, if the hotel they’re at has been searched yet,” she told CNA.

Shubakshi’s sister, Dipti Bhatnagar, appealed for more resources to be deployed to find the missing tourists and urged authorities to use location data from technology companies to assist rescuers.

“My sister is one of the best persons that I know in the world. She’s a very helpful person. She’s a nutritionist,” Bhatnagar said.

The Rawlas were travelling with Nepal-based tour operator Himalayan Glacier, whose founder Sagar Pandey said 47 of the 54 people in his group remained unaccounted for.

Pandey said 36 of those missing had been staying at hotels in Kailash, while another 11 were travelling towards the border, adding that the hotel where the group had been staying was no longer standing.

He said the flood struck with such speed and force that even people familiar with the mountains had little time to escape to higher ground.

“The flood came almost 150 metres above the ground,” Pandey told CNA.

Seven staff members from Himalayan Glacier were also missing, while the company’s satellite phone had been unable to establish contact, he said.

Other missing Singaporeans were travelling with Trekkers Society and Leaf Holiday, with the former saying 92 people in its Kailash Manasarovar pilgrimage group remained missing.

Singapore’s Ministry of Foreign Affairs said it was in touch with the families of affected Singaporeans, while the Singapore High Commission in New Delhi and embassy in Beijing were working with Nepali and Chinese authorities.