Two weeks ago, we reported a GPS signal interference over northern Poland. These problems resulted, among others, in the failure of control of drones, which unexpectedly drifted off course or fell. There were besides problems in flying passenger aircraft.
There were specified serious situations that Ryanair had to land at a spare airport in Poznań from Alicante to Bydgoszcz. The reason was that the GNSS signal was being disrupted (this includes GPS). The Polish Air Navigation Agency issued a informing and published peculiar areas for drones and aircraft.
GPS interference has been in Poland for a long time. "Russia has its fingers in it"
After 2 weeks, the situation has inactive not improved. As the latest GPSJAM map shows (June 29, 2025), northern Poland – especially the regions of Pomerania, Warmia and Mazury – is inactive in the region of strong GPS signal interference. The area is marked red, indicating a advanced level of interference (more than 10%).
Against the background of Western or Central Europe, Poland is very worrying. The vast majority of the continent (including Germany, the Czech Republic and Austria) has small interference in the GPS signal (green means 0-2 percent), while the northern half of our country is among the most affected areas.
Looking at the map, we rapidly come to the conclusion that there may be Russian services behind it, which set up at the border (in Kaliningrad, Belarus) devices disrupting or blocking the signal (called jammery). And this time it is not just a conspiracy explanation or a case (this was discovered in Sweden for example last year).
– There is no uncertainty about this that Russia has its fingers in this," said Minister Tomasz Siemoniak on Polsat News. “The services have been doing this for a long time in cooperation with the authorities liable for air navigation, for the safety of the Polish space, and I do not want to talk about details here due to the fact that these activities are not public, but we take this highly seriously,” he added.
Unfortunately, this situation has serious consequences: problems with appropriate navigation, increased hazard of drone accidents (private but besides police accidents), difficulties in flights not only commercial and possible risks to critical infrastructure for state security.
