The Security Service of Ukraine has collected evidence against another traitor who defected to the enemy and is fighting against Ukraine: Oleksiy Olkhovsky, commander of combat unit No. 1 of the russian submarine of 636.3 Varshavyanka class (NATO classification: Kilo).

In December 2025, the SSU’s Sub Sea Baby underwater drones struck one of these submarines.

The 30-year-old Olkhovsky had been serving in the Armed Forces of Ukraine in Crimea since 2012. However, after the Ukrainian peninsula was captured, he betrayed his oath and defected to the enemy.

The investigation established that Olkhovsky was directly involved in combat operations as the commander of a combat unit of a submarine of the russian Black Sea fleet.

In this position, the traitor was responsible for the vessel’s control and navigation, as well as setting the course to combat positions from which the occupiers launch Kalibr cruise missiles at Ukraine.

The ‘targets’ of the submarine crew include civilian infrastructure facilities and life support systems of our state.

Based on the evidence collected, Security Service investigators have notified Oleksiy Olkhovsky in absentia of suspicion under Article 111.1 of the CCU – high treason.

Since the perpetrator is in the temporarily occupied part of Ukraine, efforts to bring him to justice are underway.

The investigation was carried out by the SSU Office in Kyiv and Kyiv region under the procedural supervision of Kyiv Region Prosecutor’s Office.