Mystery underwater object caught on film

Source : http://www.youtube.com/watch?v=_tff8-AmiXY&feature=player_embedded
      

Mystery underwater object caught on film (Video) A mysterious unidentified submerged object was filmed off the coast of Sweden this month. The encounter has hit headlines in Sweden and generated interest elsewhere, with talk of secret underwater vehicle developments and even alien visitation being considered as a possible explanation. Sweden's armed forces have been involved in trying to determine what the object could have been and if it represents a threat. Submit News/Videos/Links | Discuss article | Article Link | More unsolved mysteries on Unexplained Mysteries