The report follows an uptick in Russian military flights near NATO's eastern border, which NATO countries describe as "provocations" and acts of aggression meant to test the country's air defenses.

"Toute violation présumée de l'espace aérien est prise au sérieux. Une enquête est en cours", a dit le ministre de la Défense du pays Antti Hakkanen, cité dans un communiqué.

The risk of drones drifting into Finland as a result of the ongoing war in Ukraine is rising, the head of the country's military intelligence service said in January. #EuropeNews