Finland’s Ministry of Foreign Affairs called in Russia’s chargé d’affaires for questioning following a suspected airspace violation on 10 June, marking the second such incident within a month.

Finnish authorities suspect a Russian military aircraft breached the country’s airspace on 10 June near the coastal city of Porvoo. The Border Guard has launched an investigation into the incident, according to Yle.

The diplomatic meeting is scheduled for 11 June, though ministry officials have not disclosed specific details about the proceedings.

This latest violation follows a similar incident that occurred at the end of May. Following that previous breach, Finland’s foreign ministry summoned Russian Ambassador to Finland Pavel Kuznetsov and formally delivered a diplomatic note addressing the matter.

Russia builds up forces along Finnish border

The airspace incidents come amid broader concerns about Russian military activities along Finland’s border. In May, Major General Sami Nurmi, head of the strategic department of Finland’s Defense Forces, indicated that the country anticipates further Russian military buildup along their shared border after the conclusion of the war in Ukraine.

Earlier, Western media outlets have published satellite imagery showing Russia’s expansion of military installations near the Finnish border. The images revealed new military housing facilities and enlarged storage areas for military equipment.

Finnish intelligence services assessed that Russia could strengthen its military presence along the Finnish border to what they describe as a “threatening level” within the next five years.

NATO intelligence sources also told a Finnish newspaper that Russia is actively maintaining and updating plans for a potential multi-front offensive against NATO’s eastern flank, targeting Finland, Norway, and the Baltic states, with intelligence indicating it could amass up to 600,000 troops along these borders despite its main forces being engaged in Ukraine.