The Black Sea Fleet's headquarters in Sevastopol after a Ukrainian missile strike on Friday afternoon.
Photos and videos showed the Black Sea Fleet's headquarters up in flames after a devastating missile strike.
  • Ukraine's attacks against Russia's Black Sea Fleet have been causing more damage than ever, UK intel said.
  • The UK's Ministry of Defense said the Russian fleet is likely losing its ability to defend its assets.
  • The Ukrainian attacks on the fleet have been "more damaging and more coordinated," British intelligence said.

Ukraine's military has beefed up its attacks against Russia's Black Sea Fleet, causing more destruction than ever, British intelligence said on Tuesday.