The Sanjarian nuclear centre, east of Tehran, in May 2021. Maxar Technologies / AFP
New generation Iranian centrifuges on display for Iran's National Nuclear Energy Day in Tehran, in April 2021. Iranian Presidency Office / Wana
President Ebrahim Raisi, second right, is accompanied by Atomic Energy Organisation of Iran chief Mohammad Eslami, at Nuclear Technology Day in Tehran in April 2022. Iranian presidency / AFP
Mr Raisi and Mr Eslami at the April 2022 event. Iranian presidency / AFP
The Bushehr Nuclear Power Plant during a visit by Mr Raisi in October 2021. Iranian Presidency / AFP
Iran's Arak Heavy Water Reactor complex, south of the capital Tehran in January 2020. Maxar Technologies / AFP
A satellite image of Iran's Bushehr Nuclear Power Plant in January 2020. Maxar Technologies / AFP
A satellite image of Iran's underground Natanz nuclear site in May 2022. Planet Labs PBC / AP
A satellite image in January 2020 of Iran's Fordow Fuel Enrichment Plant, north-east of the city of Qom. Maxar Technologies / AFP
The Sanjarian nuclear centre, east of Tehran, in May 2021. Maxar Technologies / AFP
New generation Iranian centrifuges on display for Iran's National Nuclear Energy Day in Tehran, in April 2021. Iranian Presidency Office / Wana
President Ebrahim Raisi, second right, is accompanied by Atomic Energy Organisation of Iran chief Mohammad Eslami, at Nuclear Technology Day in Tehran in April 2022. Iranian presidency / AFP
Mr Raisi and Mr Eslami at the April 2022 event. Iranian presidency / AFP
The Bushehr Nuclear Power Plant during a visit by Mr Raisi in October 2021. Iranian Presidency / AFP
Iran's Arak Heavy Water Reactor complex, south of the capital Tehran in January 2020. Maxar Technologies / AFP
A satellite image of Iran's Bushehr Nuclear Power Plant in January 2020. Maxar Technologies / AFP
A satellite image of Iran's underground Natanz nuclear site in May 2022. Planet Labs PBC / AP
A satellite image in January 2020 of Iran's Fordow Fuel Enrichment Plant, north-east of the city of Qom. Maxar Technologies / AFP
The Sanjarian nuclear centre, east of Tehran, in May 2021. Maxar Technologies / AFP