A report by the National Council of Resistance of Iran (NCRI) alleges that Iran’s nuclear weapons program remains active. The report claims that the country’s civilian nuclear program is providing cover for military aspects of the program. The NCRI identifies four military sites involved in nuclear weapon work, including: Pazhouheshkadeh, located at the Parchin military complex; the Nouri Industrial site, located at the Khojir military complex and run by the Hemmat Industries Group; the Hafte Tir site near Isfahan, which is run by IRGC Brigadier General Mohsen Fakhrizadeh-Mahabadi and has been used to produce centrifuge components; and the Sanjarian site east of Tehran. The NCRI claims several of these sites have tunnels and silos that would allow for nuclear work to be transferred. The report asserts that North Korea cooperated with Iran in building the tunnels at the Nouri site, as well as in designing warheads. The report is entitled "Iran’s Nuclear Core: Uninspected Military Sites."