Greek officials say a military sea drone discovered on a Greek island last week is of Ukrainian origin and that the incident is “extremely serious.” Greece’s defense ministry and related authorities confirm the identification but provide limited public information about how the drone was found, who operated it, or its technical specifications beyond broad description. Greek naval experts reportedly assess that the device resembles Ukrainian “Magura”-type sea drones, a platform associated with Ukrainian intelligence and used for maritime operations. Separate reporting notes that Ukraine has employed surface drones in conflict zones, including attacks against Russian naval vessels in the Black Sea and, more recently, actions targeting tankers. The incident has therefore prompted heightened concern in Greece regarding potential security and maritime threats, while the available public details remain focused on origin and the gravity of the discovery. No information in the provided accounts indicates whether the drone was armed when found or whether it was linked to a specific planned attack in Greek waters.