Europe — 2026-08-13

Denmark Records Unprecedented GPS Disruptions Near Bornholm With 30 Incidents in 2026 as Baltic Electronic Warfare Intensifies

BLUFBaltic GPS disruption escalating from minutes to full-day outages reflects a structural byproduct of Russian electronic warfare posture, leaving commercial operators without realistic mitigation until multi-constellation receivers proliferate.

A GPS measuring station at Tejn on Bornholm has logged roughly 30 jamming and spoofing incidents in 2026, up from 16 in all of 2025 and 11 in 2024, according to Danish broadcaster DR 1. DTU Space researcher Søren Reime Larsen said the instruments cannot pinpoint the source of interference but noted a rise since Russia's 2022 invasion of Ukraine 1. Cargo vessel captain Jens Nielsen, who operates Baltic routes, told DR that disruptions once lasted 15-20 minutes but that his ship lost signal for roughly a day between Gdansk and southern Gotland on July 29, then went another twelve hours without signal approaching Bornholm on a subsequent voyage 1. Reporting relayed by Ukrainska Pravda and EU Alive placed the Bornholm data within a wider pattern of Baltic GPS interference, citing Finnish warnings in May of disruptions near the Åland Islands and a sharp rise in incidents Sweden recorded in 2025 affecting civil aviation and shipping 23. That reporting cited Swedish Transport Agency data recording hundreds of such incidents and tracing their source to Russian territory 23.

Analysis
Bornholm's Tejn station shows Baltic GPS interference shifting from episodic to sustained, with outage duration escalating from minutes to a full day, forcing crews onto manual dead-reckoning and exposing smaller operators lacking multi-constellation backup. Researchers attribute the trend to Russia's broader air-defense and counter-drone electronic-warfare posture rather than deliberate targeting of Bornholm, meaning Baltic shipping and aviation absorb the cost as a byproduct; the pattern is equally consistent with spillover from jamming aimed at Ukrainian drones and NATO ISR rather than an effort against Baltic shipping specifically. A single-station dataset cannot geolocate emitters, so attribution to specific Russian assets like Kaliningrad-based systems stays inferential, and the account rests on one primary thread (DR), with EU Alive and Ukrainska Pravda amplifying rather than independently corroborating.

3 sources