Sweden released on Sunday a grainy photo of a mysterious vessel in Stockholm's archipelago, as the military hunted for a foreign submarine or divers in the country's biggest such mobilization since the Cold War.
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Reuters: Sweden says credible reports of foreign submarine in its waters
This handout picture made available on Oct. 19, 2014 by the Swedish Defence minister shows a dark object in a white wake in the sea to the left of the birch at center.
