The Islamic Republic's nuclear program has sped up its enrichment of uranium, nearing the 90% level needed for weapons grade, according to the head of the International Atomic Energy Agency.

Rafael Grossi told Reuters on Friday that Iran's production capacity is "increasing dramatically of the 60% inventory" and warned the regime could potentially expand the current level "seven, eight times more, maybe, or even more."

According to the Reuters report, Iran has enough fissile material to create four nuclear devices or more.