High radiation levels measured at sunken Soviet submarine K-278 Komsomolets site
Sunken Soviet submarine K-278 Komsomolets in the Norwegian Sea continues to release radioactive material more than three decades after sinking on April 7, 1989, according to a 2026 study. Measurements show extremely high concentrations of radionuclides near the wreck, while rapid dilution in surrounding seawater limits broader environmental impact.











