
A Russian nuclear-powered attack submarine cruised within 200 miles of the East  Coast recently in the latest sign Russia is continuing to flex its naval and  aerial power against the United States, defense officials said.
The  submarine was identified by its NATO designation as a Russian Seirra-2 class  submarine believed to be based with Russia’s Northern Fleet. 
It was the  first time that class of Russian submarine had been detected near a U.S. coast,  said officials who spoke on condition of anonymity because of the sensitive  nature of anti-submarine warfare efforts.
One defense official said the  submarine was believed to have been conducting anti-submarine warfare efforts  against U.S. ballistic and cruise missile submarines based at Kings Bay,  Georgia.
A second official said the submarine did not sail close to Kings  Bay and also did not threaten a U.S. aircraft carrier strike group that was  conducting exercises in the eastern Atlantic.
Kings Bay Naval Submarine  Base, north of Jacksonville, Fla., is homeport for two guided missile submarines  and six nuclear missile submarines. The submarines are known to be a target of  Russian attack submarines.
Meanwhile, the officials also said that a  Russian electronic intelligence-gathering vessel was granted safe harbor in the  commercial port of Jacksonville, Fla., within listening range of Kings  Bay.
The Russian AGI ship, or Auxiliary-General Intelligence, was allowed  to stay in the port to avoid the superstorm that battered the U.S. East Coast  last week. A Jacksonville Port Authority spokeswoman had no immediate comment on  the Russian AGI at the port.
“A Russian AGI and an SSN in the same  geographic area as one of the largest U.S. ballistic missile submarine  bases—Kings Bay—is reminiscent of Cold War activities of the Soviet navy  tracking the movements of our SSBN’s,” said a third U.S. official, referring to  the designation for ballistic missile submarines, SSBN.
“While I can’t  talk about how we detected it, I can tell you that things worked the way they  were supposed to,” the second official said, stating that the Russian submarine  “poses no threat whatsoever.”
According to naval analysts, the Russian  attack submarine is outfitted with SS-N-21 anti-submarine warfare missiles, as  well as SS-N-16 anti-submarine warfare missiles. It also is equipped with  torpedoes.
The U.S. Navy deploys a series of underwater sonar sensors set  up at strategic locations near the United States that detected the submarine  sometime late last month.
The submarine is currently believed to be in  international waters several hundred miles from the United States.
The  official said the deployment appeared to be part of efforts by the Russian navy  to re-establish its blue-water naval power projection capabilities.
Naval  analyst Miles Yu, writing in the newsletter Geostrategy Direct, stated that  Russia announced in February it is stepping up submarine patrols in strategic  waters around the world in a throwback to the Soviet period.
“On June 1  or a bit later we will resume constant patrolling of the world’s oceans by  strategic nuclear submarines,” Russian Navy Commander Adm. Vladimir Vysotsky was  quoted as saying Feb. 3.