Sergei Kotov destruction stinging blow compelling change to Crimean supply routes – military analyst
Ukrainian intelligence publishes a conversation between Russians about Sergei Kotov sinking
Helicopter possibly present on destroyed Russian patrol ship Sergey Kotov — UA Navy
‘Twin’ of a ship involved in Zmiinyi Island assault. What is known about Sergei Kotov patrol ship
Drone attack sinks Russian warship, requiring over 10 ambulances as crew casualties mount – HUR