Olli Heinonen, former chief nuclear inspector for the United Nations, said that “such submarines often use HEU (highly enriched uranium),” yet due to international opposition to Iran’s nuclear program, foreign nations will be reluctant to supply them with the HEU needed. Iran will then be able to “cite the lack of foreign fuel suppliers as further justification for continuing on its uranium enrichment path.”

Any step that Iran takes along such a path will certainly increase global suspicions and destroy any progress made during negotiations that have been taking place with the UN. It could even lead closer to a military confrontation, which could devastate the global oil market.

[Commentary From Oilprice.com: Why the Iran Oil Embargo Is a Big Flop]

Many experts doubt Iran’s capability to build a nuclear submarine. Mark Fitzpatrick, director of the International Institute for Strategic Studies in London, flatly stated that “there is no way that Iran could build a nuclear-powered submarine.”

Shashank Joshi, a Middle East specialist at the Royal United Services Institute, said that “Iran is using this submarine announcement to create bargaining leverage. It can negotiate away these 'plans' for concessions, or use the plans as a useful pretext for its enrichment activity.”

—This story originally appeared on Oilprice.com.