Iranian Army Navy Commander Rear Admiral Habibollah Sayyari said Saturday that the Islamic Republic has added three more Ghadir-class submarines to its naval fleet.
"All parts of these submarines, including their body and their advanced radar equipment and defense systems have been designed and manufactured by our country's defense experts and with the help of the Defense Ministry," he said in a press conference.
The vessels had been said to have been delivered to the Iranian navy in southern port of Bandar Abbas. It said the submarines were from the Ghadir class, of which Iran already has four.
This class of submarine can fire missiles and torpedoes and operate in the Gulf's shallow waters.
The move is seen as part of Iran's effort to upgrade its defense capabilities amid escalating tension over its nuclear program. The West suspects Iran is aiming at developing nuclear weapons, which a charge Iran denies.