22 university students were killed in a fire when their bus collided with a vehicle transporting fuel in western Iran.
The bus was taking the male students back home to the northeastern city of Mashhad.
It crashed with the heavy goods vehicle yesterday evening on a road between Khuzestan and Lorestan provinces.
Local police blamed driver error for the accident.
Seven people were injured.
Iran's roads are among the most dangerous in the world.
At least 100,000 people in the country of 70m have died in road accidents over the past five years.
