At least 47 American citizens are among the hundreds of people missing in Nepal after a catastrophic earthquake triggered devastating flash floods, authorities announced Wednesday.

Nepal's Tourism Board reported that nearly 50 foreign nationals from the United States were unaccounted for. Additionally, 33 individuals from the United Kingdom are among the missing. In total, 403 tourists are currently missing, with 200 women and 203 men.

The office of Nepal's prime minister confirmed that rescue efforts are underway and that 95 bodies have been recovered thus far. Terrifying footage emerged showing surging floodwaters inundating the area and sweeping through buildings. The extent of casualties is expected to rise as search operations continue.