Ukraine’s defense intelligence agency (HUR) claims to have obtained sensitive engineering documents and internal data on Russia’s newest nuclear submarine, Knyaz Pozharsky, part of the advanced Borei-A class.
The leaked files reportedly reveal technical specifications, crew instructions, combat layouts, and even damage reports, including photos.
The submarine, commissioned in July 2025, carries long-range nuclear missiles and is a key asset in Russia’s naval fleet. If authentic, the documents could expose vulnerabilities in Russia’s strategic deterrent and are likely to be of great interest to Western defense agencies.