File Photo: In this Jan. 15, 2011 image, a part of Arak heavy water nuclear facilities is seen, near the central city of Arak, 150 miles (250 kilometers) southwest of the capital Tehran, Iran
Iran is scaling down plutonium production plans at its partially built heavy-water reactor, saying the facility will make significantly smaller amounts of waste plutonium than what is required for the core of a nuclear weapon.
Nuclear chief Ali Akbar Salehi told the official IRNA news agency late Wednesday that instead of 10 kilograms (22 pounds) as initially planned, the Arak reactor will make less than 1 kilogram (2.2 pounds).
Salehi says this will involve redesigning the reactor, which is still under construction.
The change of plans is part of a deal that Iran is negotiating with world powers to ensure its nuclear program will not produce an atomic weapon, in exchange for the lifting of international sanctions.
The next round in the nuclear talks will be held next week.