road reconstruction opposite the Mamloo Dam, near the Parchin Military Complex. Iranian Foreign Minister Mohammad Javad Zarif claimed that the Institute for Science and International Security's analysis of satellite imagery was lies. In August 2015, the IAEA announced that a small extension to an existing building seems to have been built in Parchin. On 20 September 2015, Director-General Yukiya Amano of the IAEA went to Parchin, along with Director of Safeguards Tero Varjoranta, to obtain clarifications on the nuclear activities of the site. The next day, Amano professed satisfaction with the samples taken by the Iranians themselves and handed over to the IAEA under "established procedures". IAEA experts were not physically present during the sampling, but Amano said the procedure meets "strict agency criteria" that ensure "the integrity of the sampling process and the authenticity of the samples." What follows is a verbatim quote of the IAEA report on the September 2015 visit to Parchin: 2015 proof of nuclear weapons programme In June 2016, IAEA investigators reported to the Wall Street Journal that they had found in December 2015 traces of uranium at the Parchin facility, establishing the first physical evidence of a nuclear weapons programme at the missile complex site, which was nicely displayed in the reference article by satellite photograph. 26 June 2020 explosion In the early morning of 26 June 2020, an explosion occurred close to the military base in Parchin. According to the Defense ministry spokesman Davoud Abdi, it was due to "a gas leak" at a "gas storage facility" near the base. In news that was released the next day by the Associated Press, Sentinel-2 satellite images show signs of a vast blackened area in the hills located next to the ammunitions facility and the cruise missile factory at Khojir missile base, which is evidence of an explosion and fire that lit up the night sky in Tehran. On 29 June, the New York Times accused the Iranian government of lying that the blast happened at Parchin, because satellite photographs show the explosion happened at the adjacent Khojir missile production facility. Collaborations There have been reports of collaborations between Parchin and Imam Hossein University. References External links Timeline of Iran's Nuclear Activities – The Iran Primer. Military installations of Iran Weapons test sites