MOSCOW (Reuters) - The Russian Northern Fleet's anti-submarine force has detected a foreign submarine in the country's boundary waters and "expelled" it, Russian news agencies reported on Saturday, citing an unnamed spokesman for the Russian Navy Main Staff.

A foreign submarine, presumed to be a U.S. Navy Virginia-class vessel, was detected by Northern Fleet forces on duty in the Barents Sea on Aug. 7, the spokesman said.
http://news.yahoo.com/russia-detects...155013008.html