The submarine, dubbed Ghadir, is reportedly fitted with noise-reduction features and is capable of firing missiles and torpedoes simultaneously.
"This submarine is equipped with advanced weapons and electronics systems. It has been developed in the last decade by [Iranian] scientists and engineers," a TV program quoted Navy commander, Admiral Habib Sayyari, as saying.
The admiral also said the Navy commissioned a destroyer and a missile boat.
According to various intelligence reports, Iran has been spending a considerable share of its defense budget on modernizing its naval forces over the last decade.
"The Iranian Navy - surface ships, submarines and naval bases - is equipped with all the necessary modern weaponry, including missiles," Sayyari said. "Their [the missiles] range is sufficient to protect effectively our southern flank in the Persian Gulf."
In a separate development, Iran, which received no invitation to the Mideast peace conference in Annapolis, announced on Tuesday that it had produced a ballistic missile with a range of 2,000 kilometers (1,240 miles). The missile's range would allow it to reach Israel, as well as United States military bases in the Middle East.
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Image Galleries: Russia in World War I
Infographics: World War I, 1914-1918
The self-defense forces in Donbass likely do not have the capability to win. Kiev will simply outlast the republic’s fighters. Ukraine still has many mobilization resources. The most important thing for self-defense fighters is not to win the war but rather not to lose it.