TEHRAN, Nov. 27 (Xinhua) -- Iran's Railways Chief Mohsen Pourseyed Aqaei resigned on Sunday following a deadly train crash in the northern province of Semnan on Friday, Tasnim news agency reported.
Minister of Road and Urban Development Abbas Akhoundi accepted Aqaei's resignation, the report said.
Iranian lawmakers are also working on a plan to impeach Akhoundi for what they call his weak performance that led to the terrible train accident.
On Friday, two trains collided in Haft-Khan train station located between Semnan and Damghan cities, which killed 45 and injured 103 others.
On Saturday, three railway staff were detained over the collision, the prosecutor of Semnan province, Heidar Asiaei, was quoted as saying by semi-official Mehr news agency.
Iranian officials said that human failure in observing the duties was the cause of the accident.
Asiaei added that the results of investigations will be later announced.