YAMIL LAGE/AFP via Getty Images
- Russian naval ships left Cuba on Monday after a five-day official visit.
- Among them, the submarine Kazan — with visible damage including panels falling off.
- Though a shabby look, it won't affect the sub's performance, experts told BI.
One of Russia's most advanced new submarines, which just left Cuba, is "falling apart" with damage on its hull, according to an OSINT analyst.