A crowded bus in Nepal has crashed off a mountain highway, killing 19 people including a British national. Police say the bus drove off the Prithvi highway after midnight on Monday. It rolled down a slope and landed on the bank of the Trishuli river. Rescuers were able to reach the site soon after the crash. They pulled injured passengers from the wreckage and sent them to hospitals. About 25 people were hurt and police were investigating the cause. Nepal sees frequent deadly bus crashes, in large part because of poor roads and poorly maintained vehicles.