A passenger train crash has killed 44 people and injured 103 in the northern province of Semnan in Iran.
State media reported that the incident took place when one train collided with another at a station, located 250km east of Tehran. The collision occurred on the main line between Tehran and Mashhad.
Footage from state television showed four derailed carriages, with two being ablaze.
An investigation is being carried out to determine the cause of the crash.
Semnan provincial governor Mohammad Reza Khabbaz told Iranian television that based on initial investigation, it was known that the express train operating between the cities of Tabriz and Mashhad was forced to halt due to a mechanical failure, which was possibly caused by freezing temperatures.
The train was carrying 400 passengers at that time and it was not clear about the number of people on the stationary train.
According to Mehr news agency, four of the dead were railway employees. Officials said that rescue effort could not be sustained due to the remote location.