Iran is developing a second path to achieving a nuclear weapon by operating a heavy water plant in Arak that could produce plutonium, satellite images published by The Daily Telegraph on Wednesday show.

The satellite images that were taken on February 9 show indication that Tehran has activated the plant. …

Additional images of the area show the Arak plant is protected by numerous anti-aircraft missile and artillery sites that are heavily concentrated to the west of the plant, which would be the most direct line of approach for a long-range strike from Israel, according to the Telegraph.

According to the Telegraph, the heavy water facility has not been visited by any international inspectors since August 2011 and the Islamic Republic has repeatedly refused requests for information about the site. The nuclear reactor in the Arak complex has been opened to IAEA inspection.