from cnn.com: A foreign submarine recently trespassed in Swedish territory, officials there said Friday, but they couldn't say what country the vessel belonged to. The Swedish military began an intense sweep of the waters off the coast of Stockholm more than three weeks ago. On Friday, the Swedish Armed Forces announced that its investigation confirmed that a submarine was indeed in Swedish waters. When the search started, the Swedish newspaper Svenska Dagbladet reported that the military became suspicious after Swedish intelligence picked up an emergency radio call in Russian. Russia denied that it had any vessel in Swedish waters.