A military sea drone, laden with explosives, discovered last week on a Greek island is believed by investigators to have veered off course due to a technical malfunction, sources indicated on Friday. The unmanned vessel, found by fishermen on the shores of Lefkada on 7 May, has sparked diplomatic tensions between Athens and Kyiv, with Greece asserting a Ukrainian origin, a claim officially denied by Ukraine. Greek intelligence and military units are currently engaged in a detailed analysis of the drone, involving its dismantling and reverse engineering to ascertain its precise characteristics. Investigators are also meticulously examining its metadata to determine its intended mission and whether it was launched from a larger vessel or from a coastal location, potentially as distant as Libya across the Mediterranean. A security source suggested the drone likely failed to reach its designated target after experiencing a technical fault that led to a loss of orientation. "This issue is very serious.…