UNITED NATIONS - Asserting that its nuclear programme was for peaceful purposes, Iran's Foreign Minister Manouchehr Mottaki said Thursday that his country has declared all its atomic sites to the U.N. nuclear agency as he countered western claims that it may have undeclared facilities. "Whatever Iran has as nuclear sites has been announced to the IAEA (International Atomic Energy Agency), and the only case that is under construction is Qom and we also announced that," Mottaki told a press press conference at UN Headquarters in New York. Mottaki's comments came as Iran held talks with six world powers in Geneva that centered on the Qom nuclear site whose existence was officially disclosed last week. The New York Times on Thursday quoted Iran's nuclear chief Ali Akbar Salehi as telling Iranian television he was preparing a letter for the IAEA on the exact location of the Qom facility "and others." It said the comment aroused hopes that Iran might be about to reveal more about its nuclear activities. Western countries suspect Iran is aiming to develop nuclear weapons, something long denied by Tehran, which says it seeks only to generate civil nuclear power. At his news conference, Mottaki also reaffirmed Iran's readiness to boost its talks with the major powers -- being conducted in Geneva by senior diplomats -- to summit level. "As we told earlier, the Islamic Republic of Iran has the readiness to enhance the level of such talks up to the level of a summit meeting," he said. Mottaki was apparently referring to remarks on Wednesday by Iran's President Mahmoud Ahmadinejad, who proposed an organized structure for the discussions, with three committees dealing with different issues, and an "assembly" of heads of state of the countries involved as the top decision-making body.