Ukrainian drone strikes hit tanker off Sochi, sink cargo ship in Bulgarian waters

Ukrainian drones attacked a Liberian-flagged oil tanker near Sochi, Russia, and struck two cargo ships in Bulgarian waters, sinking one with crew missing. Moscow reports over 600 drones launched overnight, signaling a significant escalation in Ukraine's maritime drone campaign against Russian and allied shipping. The attack expands the conflict into NATO member Bulgaria's waters, raising risks of broader escalation.