Iran has begun developing nuclear weapons at a new facility - assessment

New satellite imagery indicates a resumption of activity at Iran's underground nuclear facility near Tehran, which Israel struck in early 2026. The Institute for Science and International Security assesses that Iran is attempting to restore its capacity to develop nuclear weapons. Activity has also been recorded at the Natanz facility and the Parchin base.

New satellite imagery indicates a "significant resumption of activity" at Iran's underground nuclear facility near Tehran, which Israel bombed during the war in early 2026. This is reported by the Institute for Science and International Security. The study states that such activity may indicate Iran's attempts to restore its capacity to develop nuclear weapons and replenish what was destroyed in the strike on the complex. In early March 2026, the IDF, as part of Operation "Roar of the Lion," reported the destruction of a secret underground facility in Minzadehi, where, according to the Israeli military, Iranian scientists were working on developing nuclear weapons. The IAEA recorded activity at the Kuh-e Kolang Gaz La facility in the Natanz area. Analysis of satellite imagery by CSIS revealed record levels of construction work. Experts note the reinforcement of entrances, roadwork, and signs of a transition from earthworks to construction inside the complex. Earlier, "Cursor" reported that new images indicate Iranian restoration work at the "Taleghan-2" facility of the Parchin military base, where Iran is allegedly trying to conceal work from observation by building a shelter.