WASHINGTON/DUBAI: Recent satellite imagery shows major expansions at two key Iranian ballistic missile facilities that two American researchers assessed are for boosting missile production, a conclusion confirmed by three senior Iranian officials.

The enlargement of the sites follows an October 2022 deal in which Iran agreed to provide missiles to Russia, which has been seeking them for its war against Ukraine. Tehran also supplies missiles to Yemen’s Houthi rebels and the Lebanese Hezbollah, both members of the Iran-backed Axis of Resistance against Israel, according to US officials.

Images taken by commercial satellite firm Planet Labs of the Modarres military base in March and the Khojir missile production complex in April show more than 30 new buildings at the two sites, both of which are located near Tehran.

The images, reviewed by Reuters, show many of the structures are surrounded by large dirt berms. Such earthworks are associated with missile production and are designed to stop a blast in one building from detonating highly combustible materials in nearby structures, said Jeffrey Lewis of the Middlebury Institute of International Studies at Monterey.

The expansions began at Khojir in August last year and at Modarres in October, Lewis said, based on images of the sites.

Iran’s arsenal is already the largest in the Middle East, estimated at more than 3,000 missiles, including models designed to carry conventional and nuclear warheads, experts say. Three Iranian officials, who asked not to be identified because they were not authorized to speak publicly, confirmed that Modarres and Khojir are being expanded to boost production of conventional ballistic missiles.

“Why shouldn’t we?” said one official.

A second Iranian official said some of the new buildings would also allow a doubling of drone manufacturing. Drones and missile components would be sold to Russia, drones would be provided to the Houthis and missiles to Hezbollah, the source added.

Reuters was unable independently to confirm the Iranian officials’ comments. Iran’s mission to the United Nations did not respond to a Reuters request for comment on the expansion of the complexes.