Updated

Iran says it could cooperate in a global nuclear fuel bank, a U.S.-backed idea for a safe repository for uranium aimed at preventing proliferation of nuclear weapons.

President Mahmoud Ahmadinejad said Wednesday Tehran places importance on international nuclear cooperation including "Iran's presence in the global fuel bank."

Iran has been wrangling with Western powers over their proposal for it to ship most of its uranium out for enrichment abroad. The aim is to reduce Iran's stockpile of fuel that can be used for nuclear energy or nuclear weapons. Iran is resisting the idea and instead proposing the U.N. supervise uranium enrichment inside the country.

President Barack Obama and U.N. have both endorsed nuclear fuel banks.