A Russian submarine was spotted south of the coast of the Hanko Peninsula in Finland.

The Finnish broadcaster Yle reported that local citizens even managed to make photos of Russian submarine.

The Hanko Peninsula is located on the northern shore of the Gulf of Finland in the Baltic Sea in southwestern Finland.

The submarine was seen and photographed by passengers on a ship traveling from Helsinki to the city of Travemünde in northern Germany.

The Russian submarine was moving in international waters, fully within the rules.

“The Finnish Defense Forces were also aware of his movements,” Finnish journalists said.

Officer Anssi Munkki of the National Defense University identified the object as a Russian Kilo-class submarine according to NATO classification.

According to him, there are several such submarines in the Baltic Sea, and they can move in the same queue as ships.

In NATO, the Kilo-class is used to designate Russian diesel-electric submarines from Project Paltus and Project Varshavyanka.

As previously reported, in the summer of 2021, The Telegraph newspaper wrote that a Russian submarine was spying on a British Navy aircraft carrier strike group in the Mediterranean.

The newspaper specified that it was most likely also about a diesel-electric submarine of the Russian Black Sea Fleet, designated by NATO as Kilo-class.

Then Merlin Mk2 helicopters were sent into the air to search for the submarine. They dropped radio-hydroacoustic buoys designed to detect submarines into the water, believing the submarine was following the Queen Elizabeth aircraft carrier and escorting ships.