Commander Richlyn Ivey, a spokesperson for the U.S. Navy's 6th Fleet, told Newsweek on Friday that the deaths are unrelated.
The region is sandwiched between NATO member countries Lithuania and Poland and has been Russian territory since 1945.
NATO-member Lithuania blocked the transit of goods to the Russian exclave of Kaliningrad.
Russia's naval exercises come amid heightened tensions over the Ukraine war and bids by Finland and Sweden to join NATO.
Russia has repeatedly warned of military escalation and even the potential use of nuclear weapons if the two countries join the Trans-Atlantic alliance.
Russia's foreign ministry announced it had conducted simulated missile strikes near a region between Poland and Lithuania.
Denmark currently has a 15.8 percent reliance on Russian energy, and is looking to reduce it even more with the construction of new wind farms.
Amid high tensions with the U.S., NATO and Ukraine, Russia has amassed about 100,000 troops near the Ukrainian border.
The Danish vessel Karin Hoej capsized and was floating upside down after a collision with the British ship Scot Carrier in the Baltic Sea.
Research into the attacks, which took place in the Baltic Sea over three months in 2016, is still ongoing.
Tensions with NATO are high in the Baltic Sea and Nikolai Yevmenov said in a message that six Karakurt-class corvettes would boost Russia's fleet there.
"It might be impossible to truly fathom the magnitude of the threat that global-mean sea level rise poses," researchers wrote in a study.
The 0.2-inch-long specimen was identified in amber from the Baltic Sea region in northern Europe.
Kaliningrad received its current name by the Soviet Union, after serving as a German bastion in Eastern Europe for centuries.
The controversial floating power plant will be towed through the Baltic Sea and narrow European straits to get to the Arctic.
Russia's Baltic fleet has put its newest rockets and artillery on display in the middle of Kaliningrad.
The Baltic NATO ally summoned Russia's envoy to demand an explanation, but Moscow claims the incursion was an emergency call which is being "politicized."
Russia has said its new military drill is not aimed at any particular state, but the planned map shows the hypothetical enemy is in Poland, Latvia and Lithuania.
The Baltic Fleet has called on 70 ships from its main ports and 2,000 troops ahead of a military drill on land in nearby Belarus.
Russia's military flights over the Baltic have forced NATO to regularly scramble planes.
The Russian Il-20 aircraft flew to and from Kaliningrad—a course Russia has defended as a "necessity."
The upcoming Russian drill has concerned the Baltics, but it is Moscow-ally Belarus that should be worried, Mikheil Saakashvili says.
Around 10 aircraft will also take part in yet another military drill in the Baltic region this summer.
Russian jets have been caught near NATO skies twice recently.
Russian helicopters blasted their targets not far from where the U.S. and NATO allies have just begun fortifying their air defenses.
NATO members in the Baltics have grown concerned over Russia's drills and jet flights in the northeastern European region.