Unidentified submerged object

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An unidentified submerged object (USO) is an unidentified object submerged in water.[1][2][3] The term does not necessarily refer to an object of paranormal origin.

See also[edit]


  1. ^ "Mysterious craft off coast of Sweden sparks hunt for USO (Unidentified Submerged Object)". 21 October 2014.
  2. ^ "Archived copy". Archived from the original on 2014-12-28. Retrieved 2014-12-28.
  3. ^ Speigel, Lee (31 May 2012). "Baltic Sea UFO Hunters Look To Identify Mystery Object" – via Huff Post.