The Ukrainian army struck a Russian submarine in the port of Novorossiysk, causing serious damage, according to the SBU.

Ukrainian army naval drones attacked a Russian submarine valued at 400 million dollars, capable of launching Kalibr cruise missiles, in the port of Novorossiisk on the Black Sea. The attack was carried out with Ukrainian-made drones called 'Sub Sea Baby', according to a statement from the Security Service of Ukraine (SBU). The explosion caused severe damage to the submarine, which was rendered inoperable. At the time of the attack, the submarine had four Kalibr missile launchers on board. The SBU emphasized that Russia was forced to withdraw its fleet from the Black Sea to the port of Novorossiisk due to repeated attacks by Ukrainian drones on its vessels stationed in the Crimean peninsula.