ALSO READU.S. begins unblocking jetliner sales to Iran Iran sees "more rationality" from Trump once president - cen bank official U.S. lawmakers have "grave concern" over Boeing, Airbus Iran licenses U.S. license to Airbus for Iran plane sales part of nuclear deal obligations - State Department Iran says crude market oversupplied, balance expected to be restored - TV
Deputy Chairman of the Red Crescent Society for Relief and Rescue operation Ali Yahyaei said on Friday that the number of killed passengers might grow to 40 with the number of injured people to stand about 100.
He said the extent of the incident is very huge, reports the Islamic Republic News Agency.
Some of the passengers were charred in fire and exact number of casualties is impossible at this juncture, he said.
The trains destined from Tabriz-Mashad and Mashad-Semnan collided at Haftkhan station in Shahroud and Damqan on Friday morning.
So far, at least 31 people have been killed and investigation into the cause of the accident is underway.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)