Iran has enough uranium enriched to up to 60% purity, close to weapons-grade, for three atom bombs by the International Atomic Energy Agency's definition, according to IAEA reports .
In its confidential quarterly report the IAEA said that according to its assessment, as of October 28, Iran has an estimated 128.3 kg of uranium enriched up to 60% purity, which represents an increase of 6.7 kg since its September report.
Iran has enough uranium enriched to lower levels for more bombs, but it denies seeking such weapons.
