Lyce · Hybrid Watch

hw_54169c3195388c17

Swedish authorities accuse Baltic Sea GPS jamming surge with links to Russia.

Sweden’s Transport Agency reported that incidents of GNSS/GPS signal interference rose dramatically in 2025—733 cases recorded between January and late August, a leap from 55 in all of 2023. The agency traced the origin of the jamming to Russian territory and stated the impacts affect both civilian aviation and maritime navigation over the Baltic Sea. The geography is the Baltic Sea corridor is Sweden’s maritime and air gateway, linking to NATO reinforcements, civilian traffic and dual-use infrastructure. The dynamic suggests a campaign-style pressure: frequent jamming, expansion of area, and forcing Sweden to devote resources to navigation resilience and oversight. Swedish defence and transport authorities publicly framed this as part of Russia’s grey-zone toolkit—probing civil infrastructure resilience and forcing distraction away from more direct military domains. The incident broadens Sweden’s threat-map beyond conventional military intrusion into electronic domain operations.

Occurrence
2025-09-04
Publication
2025-09-03T22:00:00Z
First observed
2026-09-24T06:09:10.079Z
Review status
Not assessed
Countries
SE
Updated
2026-09-27T23:56:59.668Z

E/M/R/S scores

  • EExistence0/4 · Not assessed
  • MIntent0/4 · Not assessed
  • RRussian actor link0/4 · Not assessed
  • SRussian state responsibility0/4 · Not assessed

Facts

No facts

Sources

  1. Role
    discovery_lead
    Date
    2025-09-03T22:00:00Z

    Sweden’s Transport Agency reported that incidents of GNSS/GPS signal interference rose dramatically in 2025—733 cases recorded between January and late August, a leap from 55 in all of 2023. The agency traced the origin of the jamming to Russian territory and stated the impacts affect both civilian aviation and maritime navigation over the Baltic Sea. The geography is the Baltic Sea corridor is Sweden’s maritime and air gateway, linking to NATO reinforcements, civilian traffic and dual-use infrastructure. The dynamic suggests a campaign-style pressure: frequent jamming, expansion of area, and forcing Sweden to devote resources to navigation resilience and oversight. Swedish defence and transport authorities publicly framed this as part of Russia’s grey-zone toolkit—probing civil infrastructure resilience and forcing distraction away from more direct military domains. The incident broadens Sweden’s threat-map beyond conventional military intrusion into electronic domain operations.