In this picture taken on March 15, 2021 Sheikh Mohamed Hamad Mohamed Al Khalifa (5L), who is planning to climb the Mount Everest, poses for pictures upon arriving at Tribhuvan International Airport in Kathmandu. - Nepal is investigating how a Bahraini prince planning to climb Mount Everest brought 2,000 coronavirus vaccine doses to the country without prior approval, authorities said. (Photo by NIshant S. GURUNG / AFP)