Finland warns of increased GPS jamming near Russia in Archipelago Sea

Finland's Western Coast Guard has issued a warning about frequent GPS signal disruptions in the Archipelago Sea and Åland Sea areas. The interference is believed to be linked to Russian activity in the region. The warning highlights growing concerns about navigation safety in the Baltic area.

Finland's Western Coast Guard has issued an official warning about a significant increase in GPS signal jamming incidents in the Archipelago Sea and Åland Sea regions. The disruptions pose a growing concern for maritime navigation safety in waters that are strategically important to both Finland and its Baltic neighbours, including Estonia.

The jamming episodes have been occurring with increasing frequency, affecting vessels and aircraft relying on GPS-based navigation systems in the area. Authorities have urged mariners and pilots operating in the affected zones to exercise extra caution and to rely on alternative navigation methods where possible.

## Russia as the Suspected Source

The warning comes amid a broader pattern of GPS interference observed across the Baltic Sea region, which defence analysts and Nordic governments have repeatedly linked to Russian electronic warfare activities. Finland, which shares a long border with Russia and joined NATO in 2023, has been particularly alert to such incidents since Russia's full-scale invasion of Ukraine in 2022.

GPS jamming in the Baltic region has been documented near Kaliningrad, St. Petersburg, and other Russian military installations for several years. The interference can affect not only ships and planes but also emergency services and critical infrastructure that depend on satellite-based positioning.

## Wider Baltic Security Concern

For Estonia and other Baltic states, Finnish warnings of this nature carry direct relevance, as disruptions in the Archipelago Sea and Åland regions can have knock-on effects on air and sea traffic across the broader Baltic area. NATO allies have been increasingly coordinating responses to electronic warfare threats, including GPS spoofing and jamming, as part of their collective defence posture in the region.