Greek officials said on Thursday, May 21, that a sea drone discovered near the island of Lefkada posed a serious security threat and was identified as a Ukrainian unmanned surface vessel (USV). According to CNN Greece, an investigation report on the incident was delivered to the Greek prime minister’s office last week and included a detailed technical analysis of the drone.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official. Greek Defense Minister Nikos Dendias said Athens has no doubt about the drone’s origin. “There is not the slightest doubt that this was a Ukrainian sea drone. We know what type it is, where it was built and what it was doing,” Dendias said. The minister described the incident as “extremely dangerous,” warning that a civilian vessel could have been sunk if it collided with the drone. “If any cruise ship traveling from Venice toward the Eastern Mediterranean had hit this object, it would have gone to the bottom of the sea,” Dendias said during a NATO defense ministers meeting. He also questioned how many casualties such an incident could have caused. Greece raises issue with NATO, EU According to CNN Greece, the issue was discussed during NATO and European Union meetings this week, where Greek officials briefed partners about the investigation. Greek Foreign Minister Giorgos Gerapetritis also discussed the incident with Ukrainian Foreign Minister Andriy Sybiha. Athens said it expects formal explanations from Kyiv once the final military report is officially transmitted to the Foreign Ministry.