Finland is investigating a suspected violation of its airspace by a Russian aircraft over the Gulf of Finland, its Defense Ministry said. Authorities have not identified the aircraft or said whether the crossing was deliberate, and the country's border guard has opened an inquiry. The case adds Finland to a growing list of NATO states reporting Russian intrusions along the alliance's frontiers.

What Finland reported

A Russian aircraft is suspected of violating Finnish airspace in the western Gulf of Finland on the afternoon of 20 August, Defense Minister Antti Häkkänen said. He said the country treats every such case seriously and that an inquiry is running.

"Every suspected territorial violation is taken seriously. An investigation is underway," Häkkänen said.

The ministry statement did not name the aircraft. The Border Guard later identified it as a Russian Il-20 reconnaissance plane, Finnish broadcaster Yle reported, saying the suspected crossing lasted about three minutes and reached some 4.7 nautical miles into Finnish airspace at its deepest. It said it would release more as the inquiry advances.

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A pattern along NATO's frontiers

The suspected crossing follows two earlier Finnish cases this year. Finland suspected Russian military aircraft of entering its airspace in May, off Porkkala while one avoided a thunderstorm, and again in June, summoning Russia's chargé d'affaires over the two incidents.

Other members of the alliance keep logging similar incidents. Romania has destroyed a sea drone and recovered aerial-drone debris on its soil, and Russian drones have struck near Moldova's border with Ukraine. Kyiv has also accused Russia of steering Ukrainian drones toward Finland and the Baltic States through electronic warfare.

Finland joined NATO in 2023 and has since rearmed sharply, ending a domestic ban on nuclear weapons as part of a wider defense shift. It has stepped up support for Ukraine, most recently backing a power-plant project before Russia's winter energy campaign. Helsinki has also argued it is too early to negotiate with Moscow while the war continues.

NATO scrambled fighter jets to intercept Russian planes far more often over its eastern flank this July than a year earlier, the alliance's Allied Joint Force Command in Brunssum announced on 5 August. Each scramble is a launch to intercept an unidentified aircraft. The command linked the surge to Russian military planes repeatedly probing the edges of allied airspace.

Russian pressure on NATO's eastern edge has built for years, but this summer the alliance changed how it answers: it gave pilots authority that includes destroying "objects that pose a threat," ending a peacetime escort format that had held since 2004. More probing now meets a harder line.

Compared with July 2025, these scrambles rose by more than 250%, the command said.

"Russian military aircraft repeatedly flew close to NATO airspace without a flight plan and transponder signal, leaving our fighters to launch, intercept, and identify them," it added.

Polish jets keep meeting Russian spy planes over the Baltic

The report landed amid a run of intercepts near the Baltic Sea. Poland's Defense Ministry, under Minister Władysław Kosiniak-Kamysz, reported its fighters intercepted a Russian Il-20 reconnaissance plane on 4 August, 56 kilometers northwest of Koszalin in West Pomeranian Voivodeship.

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A day earlier, the minister reported, Polish crews had caught another Russian reconnaissance aircraft over the Baltic near Łeba, its transponder off. Allied pilots have run similar missions for months: French and Swedish jets met six Russian aircraft over the Baltic in a single day in June, and crews scrambled through last fall to track flights between mainland Russia and the Kaliningrad exclave.

What are the surge forces on the alliance

Every unannounced flight burns allied flight hours and holds interceptors on standby. NATO members have already fired on Russian drones crossing their skies this summer, and the more often crewed planes go dark near the border, the higher the odds a close encounter escalates. The odds of a close encounter that escalates.