A Russian spy ship heading toward Cuba has been tracked by the U.S. military since it entered north Atlantic waters earlier this month.

Currently, however, it’s just miles off the coast of the U.S., and uncomfortably close to the U.S. Navy’s East Coast ballistic missile submarine fleet, stationed on the shores of Kings Bay, Georgia. The enemy reconnaissance vessel is capable of collecting a whole host of secret military data — including undersea communications cables and sensors.

According to a senior military official, the ship is just 300 miles away from American land. While that’s close it’s still technically operating in international waters.

More from Fox News:

When asked if the U.S. had similar spy ships off the coast of Russia, he answered, “Of course we do, what do you think all those ‘oceanographic ships’ are doing, studying whales?”

At the U.S. sub base in Georgia, there are six Ohio-class ballistic missile submarines, known as “boomers,” each capable of firing 24 Trident intercontinental ballistic missiles. Each missile holds up to 10 independent nuclear warheads. In addition to the ballistic missile subs, there are two other guided-missile subs capable of firing hundreds of Tomahawk cruise missiles.