The claim
The video shows Iran unveiling its first locally made nuclear submarine.
Original review summary
The review identifies the footage as showing Japan’s Raigei, a Taigei-class diesel-electric submarine, not an Iranian nuclear submarine. It says the launch ceremony took place in Kobe on 17 October 2023 and that Iran’s known indigenous submarines use conventional diesel-electric propulsion.[S1]
Additional context
The review says Japan’s Maritime Self-Defense Force announced on 28 February 2025 that the submarine’s handover ceremony would take place on 6 March 2025 in Kobe. [S1]
Research date:
Sources and attribution
- [S1] FACTLY original review
Original review · Retrieved October 15, 2026