On Nov 28-29, 2025, Ukrainian naval drones attacked two Russian-sanctioned oil tankers, Kairos and Virat, in Turkey's exclusive economic zone in the Black Sea. Both vessels, part of Russia's 'shadow fleet' used to evade sanctions, were damaged; Kairos caught fire while Virat sustained minor damage. Turkey condemned the attacks and is engaging with parties to prevent escalation. Separately, UK officials reported increased Russian naval activity near British waters, including laser targeting of RAF pilots by the Russian spy ship Yantar.