The Ukrainian Navy has confirmed it struck and sank a Russian border guard patrol ship off the coast of Novorossiysk in Russia's Krasnodar Krai.
The vessel was identified as one involved in the 2018 Kerch Strait incident, a confrontation that resulted in the detention of Ukrainian sailors and ships by Russian forces.
The military stated that the strike killed and wounded members of the crew, though further details were not disclosed.
This development underscores the intensifying nature of Ukraine's naval operations against Russian maritime infrastructure.
The strike comes amid a broader campaign in which Ukrainian forces have claimed responsibility for destroying dozens of Russian vessels in recent weeks, targeting both military and energy-related assets.
The focus on a ship linked to a past high-profile incident suggests a strategic effort to combine military pressure with symbolic retribution.