A Royal Navy warship was forced to scramble two Russian submarines as they sailed into the North Sea.
British submarine hunter HMS Portland was on watch as cruise missile submarine Severodvinsk and Akula-class attack submarine Vepr made their underwater journey south, along the Norwegian coast from the Arctic.
The frigate shadowed the submarines as they surfaced separately in the North Sea, north west of Bergen, Norway, on July 16 and 19, the Royal Navy announced in a release on Friday.
