- IMO
- 4743313
Intelligence
Risk & Sustainability
Composite Risk
Risk Score
Strong, corroborated adverse evidence — a detention, sanctions exposure or a dark-fleet signal.
A coverage-weighted blend of the 2 components we could read for this hull — the weights renormalise over only the components present, so a thin read is never inflated and a hull is never credited a “safe 0” for a signal it has no row for. Higher means riskier. Derived in-house from government-open port-State-control, flag, sanctions and our own vessel data; weight it by the coverage above.
Transparency
Risk signals
Behavioural flags raised against this vessel — each shown with the raw evidence behind it. Derived in-house from data we are entitled to publish; informational, not a determination of wrongdoing.
Stopped transmitting relative to the live feed front
- On Sanctions List
- yes
- Regimes
- OFAC
Method: vessel is on a sanctions list but has never appeared on our live AIS feed. Source: ais_positions (absence) + sanctioned_vessels.
Signals are a current-state view: a flag clears once the vessel stops tripping its detector. These are screening indicators, not a substitute for your own due diligence.
Commercial
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Overview
About This Vessel
IRIS Dena (75) (Persian: ناوشکن دنا) was a Moudge-class frigate in the Southern Fleet of the Islamic Republic of Iran Navy. She was named after Mount Dena, and was commissioned into the navy in 2021. She was sunk on 4 March 2026 during the 2026 Iran war by the Los Angeles-class submarine USS Charlotte of the United States Navy in international waters near the southern coast of Sri Lanka. She was the only ship to be sunk in active combat by a submarine since 1982, when the Argentine Navy cruiser ARA General Belgrano was sunk by torpedoes from the Royal Navy nuclear submarine HMS Conqueror during the Falklands War, and the only to be sunk by an American submarine since the Pacific theater of World War II.
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