Zangeneh made the remarks in a press conference in Tehran where he described the results of decoding the black boxes of a Ukrainian passenger plane crashed in the Iranian capital seven months ago.
He said that the black boxes were downloaded at a center in France on July 18-25.
Representatives from different countries, including the US, as the country in which the plane had been made, Ukraine, as the flag-carrier, and France, which rendered services and technical advice to the plane, were present at the process of decoding the black boxes, the official said.
Canada, Britain and Sweden, whose citizens were among the victims of the air disaster, also had representatives at the process, he added.
A Boeing 737 belonging to a Ukrainian airline had just left Tehran’s International Imam Khomeini Airport on January 8 when it was mistakenly shut down by Iranian civil air defense. All those on board the plane died.