Authorities from Baltic and North Sea countries have issued a joint warning that maritime vessels may face increasing risks due to GNSS (Global Navigation Satellite System) interference and AIS (Automatic Identification System) manipulation. The alert comes amid reports of navigation disruptions and suspicious signal anomalies affecting commercial and fishing ships.
Officials emphasised that both accidental interference and deliberate spoofing of GNSS signals could mislead vessel positioning, posing safety hazards, disrupting shipping schedules, and potentially endangering ports and offshore infrastructure. Ships operating in the region have been urged to exercise caution, cross-check navigation data, and report anomalies immediately.
Maritime experts highlighted that these disruptions could impact cargo flows, offshore operations, and marine safety if unaddressed. Authorities are working to enhance monitoring systems, issue guidance to vessels, and coordinate with international maritime safety agencies to mitigate the risks.
