The World - News from June 8, 1986
Swedish warships dropped depth charges and magnetic grenades in fog-bound Natfjarden Bay in an effort to find suspected foreign submarines spying on naval maneuvers, officials said. Warships, helicopters and frogmen later searched the area but by mid-afternoon had found no trace of submarines, defense staff spokesmen said. The navy operation began Friday when a patrol boat fired magnetic grenades at a suspected foreign submarine detected with sonar in Vidingefjarden Bay, 40 miles northeast of Stockholm.
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