Submarines are part of the AUKUS pact with the UK, which may also jointly develop a vessel with Australia.

Foreign Minister Mohammad Javad Zarif cautions the United States against attempting to form a naval coalition against Iran under the guise of ensuring maritime security in the Persian Gulf.

Iranian Foreign Ministry spokesman strongly condemned the US spy drone's violation of Iranian airspace, and warned against violations of Iran’s frontage.

Iranian foreign minister said that sections of the US military drone were retrieved in Iran's territorial waters.

Iran’s Islamic Revolution Guards Corps (IRGC) has shot down an intruding American spy drone in the country’s southern coastal province of Hormozgan.

Foreign Minister Javad Zarif insists Tehran is not seeking nuclear weapons, accuses US of causing regional tensions.