540 foreign tourists from more than 30 countries are missing in Nepal's flash floods

More than 350 people have been killed, and more than 1,300 people are missing.

Prabin RANABHAT / AFP via Getty Images Over 500 foreign tourists are missing after severe floods hit the Nepal-Tibet border region.

People from over 30 countries, including Americans, Canadians, and Brits, are among those missing.

More than 350 people have died, and more than 1,300 are missing, local authorities said.

More than 500 foreign tourists are missing after deadly floods hit the Nepal-Tibet border on Wednesday.

The flooding began on the morning of August 26, when a surge of water, mud, and debris entered Nepal from the autonomous Chinese region of Tibet via the Bhote Koshi River, Nepal's Tourism Board said.

More than 350 people have died, and more than 1,300 are missing, local authorities said earlier on Thursday, though exact numbers are unclear.

The Tourism Board's latest update listed 667 missing travelers in Nepal.

Of those, 540 are foreign nationals, and 127 are Nepali.

The list includes 65 Americans and 25 Canadians, as well as travelers from the UK, Australia, Malaysia, and Ukraine.

178 of the missing tourists are from neighboring India, authorities said.

In total, people from more than 30 countries are missing.

The US State Department said in a press release that it was deploying a disaster response adviser and providing $500,000 through Catholic Relief Services for shelter, supplies, clean water, and sanitation.

It also said the US Embassy in the capital Kathmandu is working with local authorities to locate and assist Americans.