Russian forces carried out a naval exercise in the Baltic Sea on Friday, focusing on defending against underwater sabotage attacks, the defence ministry reported.

The Azerbaijani Navy conducted live-fire tactical drills focused on "Protection and Defense of Maritime Energy Infrastructure."

The South Korean Navy said Thursday that it conducted maritime drills this week in waters off the country’s western and southern coasts as part of its readiness against North Korean “maritime threats."

Russia has launched massive naval drills after it was forced to pull back resources from the Black Sea thanks to repeated Ukrainian drone strikes.