A former Swedish naval oficer and World War II expert Anders Autellus has said that sonar scans suggest that the "UFO" at the bottom of the Baltic Ocean could be part of a World War II Nazi anti-submarine device.

According to Autellus, the object could be the base of a device the Nazis developed as part of the war effort. Autellus said the Nazis built anti-submarine device using wire mesh to confuse submarine radar and lead the enemy craft to crash.
 
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