On Thursday, the Finnish Navy closed its inquiry into a possible submarine incursion in April. The Navy said that there wasn’t enough evidence to conclude whether any foreign powers had violated its territorial water.
A ship from the Finnish Navy dropped charges into the waters off the coast of Helsinki on April 28 after detecting “underwater sounds that were non-compliant with the surface situation in Finnish territorial waters.”
The incident happened in the midst of a sharp upsurge of Russian military activity in the Baltic Sea region, which has not yet abated. Earlier this week a Russian Kilo Class submarine was spotted in Latvian waters. In the Fall, the Swedish Navy was alerted to the presence of an unknown underwater vessel in the waters off of Stockholm.