The collision in Semnan province on the main line between second city Mashhad and the capital Tehran also injured 11 people, the television said.
At least eight dead in Iran rail crash: state TV
At least eight people were killed in Iran early on Friday when an intercity city express was hit by another train while stopped at a station, state television reported.
A general view of Tehran train station in the Iranian capital on October 27, 2014
The province's Red Crescent director, Hassan Shokrollahi, said the death toll could rise.
"We do not have the exact number of those killed as the train is on fire," he said.
He said the remote location of the station between the cities of Damghan and Semnan had also complicated rescue efforts.
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"Due to the difficulty of access, only our helicopter has managed to reach the scene," he said.
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