
On February 12, 2022 at 10.40 (Moscow time), a US Navy submarine of the Virginia class was discovered in the Russian Pacific Fleet exercise area in the territorial waters of the Russian Federation near Urup Island of the Kuril Ridge.
In the mode of sound-to-water communication, a warning message was transmitted to the crew of the submarine in Russian and English: “You are in the territorial waters of Russia. Surface immediately!”.
The crew of the US submarine ignored the demand of the Russian side.
In accordance with the guiding documents on the underwater protection of the state border of the Russian Federation, the crew of the frigate of the Pacific Fleet “Marshal Shaposhnikov” used “special warfare”.
The American submarine used a self-propelled simulator to split targets on radar and acoustic monitoring equipment and left the territorial waters of the Russian Federation at maximum speed.

