'Our parents were crossing the border an hour before the flood hit'

This video can not be played 'We just want them home': Daughters of couple missing after Tibet pilgrimage Hundreds of foreign nationals are desperately waiting to hear from loved ones thought to be caught in the deadly flash flood and mudslide along the Nepal-Tibet border. Sisters Shreya and Ashna Ahuja are among those anxiously waiting for some news of their parents, Deepak and Madhu Ahuja, who had travelled from Texas to Mount Kailash on a group pilgrimage. "It's only been one day, but it has felt like much longer," the sisters tell the BBC. "We just love them a lot and want them to come home." One of the siblings spoke to their parents just before the floods struck. More than 1,300 people are missing, including tourists from the US, Australia, Canada, India, and the UK. Nepali authorities say more than 380 people have died. Follow live updates: Fears of second flood as search for survivors continues About 90 US citizens may have been impacted , the State Department said on Thursday, confirming that three Americans had been rescued. The Ahuja sisters have contacted the State Department and US embassies in Delhi, Nepal and China, but they say they have no concrete information on the whereabouts of their parents. The region is a pilgrimage site for Hindus and Buddhists, and visited . Radhika Sharma's parents, Ramesh Sharma, 65 and Neelam Sharma, 64, two US citizens who live in New York City, were also travelling to Mount Kailash in the Kathmandu region when the disaster struck. Deepak and Madhu Ahuja The pilgrimage was their first trip on their own since retiring last year. "I am just trying to find them, I don't have any answers," Radhika Sharma told the BBC. At least 77 people caught in the disaster are part of a pilgrimage organised , a non-profit group headquartered in India that also has a base in McMinnville, Tennessee. Leslie Crespi, a community liaison for the Foundation, told the BBC that the group had been working on immigration paperwork in what was meant to be an earthquake-resistant building near the border when the water came through. "They were like family," she said, her voice breaking. Ramesh Sharma, 65, and Neelam Sharma, 64, two US citizens from New York have been missing since the flood hit Prabhath Sajeepa, another US citizen who went missing after the flood hit, was one of the 77 people travelling with the Isha Foundation. Sajeepa works for a software company in California, and has been involved with the Isha Foundation for a few years, according to his niece, who lives in Germany.