The Ukrainian Navy claimed on Friday that it struck a Russian boat carrying air defence systems to a strategic island in the Black Sea.
In a statement on social media, the Navy said the Vasily Bekh was used to transport ammunition, weapons and personnel to Snake Island, which is vital for protecting sea lanes out of the key port of Odesa. It did not say how much damage it inflicted with the strike.
Snake Island, which is about 35km off the coast, figured memorably early in the war when Ukrainian border guards stationed there defied Russian orders to surrender, using colourful language that later became a rallying cry.
The flagship of Russia's Black Sea fleet, used in the seizure of Snake Island, was sunk in April by Ukraine — a major coup for the outmanned and outgunned Ukrainian forces, which made effective use of technology and intelligence from the United States to target the ship.