In a significant incident in the Indian Ocean, over a hundred crew members of the Iranian frigate IRIS Dena have gone missing after a submarine attack. The frigate, part of Tehran's naval projection in international waters, had not attracted much public attention until now. The attack took place near Galle, a historic port city in southern Sri Lanka, causing alarm regarding maritime security in the region. The Sri Lankan military has reported that they managed to rescue 32 severely injured sailors who were evacuated after the Iranian ship issued a distress call. Alongside the confirmed missing, at least 78 additional crew members have been reported injured, raising serious concerns over the potential implications of this maritime event on regional stability and security. This incident highlights the ongoing tensions in the Middle East, particularly relating to Iran's naval activities and the strategic significance of the Strait of Hormuz. It poses critical questions about international naval engagements and the safeguarding of maritime routes, particularly given the growing use of advanced submarine capabilities in military conflicts.