Russia works on new robotic torpedo-carrying submarine hunter.

According to information published by Tass on January 19, 2022, an unmanned torpedo-carrying ship capable of autonomously detecting and eliminating enemy submarines in distant waters and Arctic latitudes is being developed for the Russian Navy.
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Seagull Unmanned Surface Vessel (Picture source: Elbit Systems)

The robotic torpedo boat will be capable of both operating autonomously and being controlled by a small crew and also be remotely controlled by operators from a coastal center or from aboard a carrier ship of these drones, he said.

The 14-meter-long robotic boat will be capable of accelerating to over 35 knots, sailing in rough seas of up to six points, and operating for as long as three days without refueling. The robotic submarine killer will have an ammunition load of two 533mm multi-purpose electric torpedoes, the source specified.