Russia fired 138 drones at targets across Ukraine in its latest overnight aerial assault, Kyiv’s air force has reported. Ukraine said they shot down 84 of the drones, and 41 more were either lost or downed using electronic warfare.

The Baltic Sea has been dubbed the "NATO Lake" following the accession to the alliance of Sweden and Finland. Countries surrounding the body of water have accused Moscow of increasing sabotage acts in the region, and the warning by Russian intelligence could prompt concerns about further acts of aggression.