Kyiv says it has hit 159 vessels linked to Russia's so-called shadow fleet during a 12-day drone campaign in the Black Sea and Sea of Azov. Ukrainian officials have said the operation is aimed at disrupting the transportation of oil and other shipments used to evade international sanctions.

Unmanned Systems Forces (USF) of the Armed Forces of Ukraine struck 20 vessels from Russia's shadow fleet near the occupied Crimean peninsula on the night of 14-15 July.

Ukraine says it has expanded its maritime drone campaign from the Sea of Azov into the Black Sea, targeting Russia-linked oil and gas vessels while naval attacks by both sides…