On 9 February 2010 the Iranian government announced that it would produce uranium enriched to up to 20 percent to produce fuel for a research reactor used to produce medical radioisotopes, processing its existing stocks of 3.5 percent enriched uranium. Two days later during the celebrations in Tehran for the 31st anniversary of the 1979 Iranian Islamic revolution, the Iranian President Mahmoud Ahmadinejad announced that Iran was now a "nuclear state." IAEA officials confirmed it has enriched uranium "up to 19.8%".