Kathmandu , Nepal ( CNN ) -- A passenger vehicle plunged off a cliff into a river in western Nepal Tuesday , killing 14 people , police said . The accident occurred in Myagdi district , about 250 kilometers ( 155 miles ) west of Kathmandu . The victims were identified as seven men and seven women , a police officer told CNN . The passengers were pilgrims going to Muktinath -- a holy site for both Hindus and Buddhists -- in western Nepal near the Chinese border . The cause of the accident is not immediately known . Overcrowding , poor roads , poor condition of vehicles and the treacherous terrain cause frequent accidents in the mountains of Nepal .
The second vehicle went into a river . The cause of the accident is unknown . The pilgrims were travelling to a holy site in western Iran .