Iranian state TV reports that the death toll from a train collision in the country's north-central Semnan Province has increased to 44, with 82 people injured in the incident.
A senior Health Ministry official said rescue operations had been completed and the final death toll was 44, the Tasnim news agency reported.
The collision occurred at the Haft-Khan station in the city of Shahroud on the morning of November 25.
State TV said the crash happened when a moving passenger train hit another that had stopped at the station, some 250 kilometers east of the capital, Tehran.
The report said that, in the collision, four carriages derailed and two caught fire.
"The initial investigation suggests that a mechanical failure, possibly caused by cold weather, forced the express train, operating between the cities of Tabriz and Mashhad, to stop [at Haft-Khan]," Semnan Governor Mohammad Reza Khabbaz told Iranian television.
Officials said ambulances, rescue teams, and a helicopter were dispatched to the site.
The casualties from the collision were taken to nearby hospitals.
According to official statistics, traffic accidents in Iran cause about 17,000 deaths on average every year.