Incidents of GPS spoofing leading aircraft off-course in the Middle East now have company in Europe. Russia is the source.

According to public aircraft tracking databases, aircraft flying in the Baltic region of Europe have been experiencing varying degrees of interference with GPS signals for the last month. The problem was particularly notable during the Holidays.

Breaking Defense reported that a spike in GPS jamming on Christmas and the following day affected a large area of northern Poland and southern Sweden. On New Year’s Eve, aircraft across southeastern Finland reported disruptions. Areas in Poland again experienced GPS disruption in mid-January. As the month wound-down, southern Sweden, northern Poland, Estonia and Latvia were impacted.