Iran's official news agency is reporting that the country has inaugurated a plant to convert a type of uranium into a material that can only be used in nuclear reactors.

The report Saturday by IRNA quoted Ali Akbar Salehi, the head of Iran's nuclear agency, saying that the plant is part of the interim deal the Islamic Republic struck with world powers over its contested nuclear program.

Salehi said the plant will convert uranium hexafluoride, which can be used to make nuclear weapons. He said the new form of the material, uranium dioxide, can only be used in nuclear reactors.

Iran and world powers are negotiating a final deal over its nuclear program after striking an interim agreement last November.