The F/S «Marjata» is a purpose-built electronic intelligence collection vessel (ELINT). She is the third ship that bears the name «Marjata», all of which has been used for military intelligence purposes by the Norwegian Armed Forces. She is owned by the Norwegian Defence Research Establishment, but operated by the Norwegian Intelligence Service, and is considered to be one of the most advanced ships of her kind in the world. Her main role is surveillance of the Russian Northern fleet`s activity in the Barents Sea, but is constructed for operations all over the world. She operates in international waters close to the Russian border. The Marjata officially serves as a research ship for the Norwegian Intelligence Service.