At least 16 people were killed and nearly a dozen remained missing after a passenger bus plunged off a mountain highway, Nepalese police said Saturday. The bus, on its way to the south-western town of Bharaihawa from the capital Kathmandu, reportedly fell about 100 meters off a highway into the swollen and fast-flowing Trishuli river early Saturday in Dhading district, about 50 kilometers west of the Nepalese capital. Police said they had recovered 16 bodies but at least 12 people were still missing. Another 24 passengers were injured and rushed to hospital, many with serious injuries, DPA reported.