Federal Security Service of Russia:
Russia's Federal Security Service (FSB) identified and contained a network of agents operating in the Kaliningrad region on behalf of Poland's intelligence services.
During its investigation, the FSB detained two agents who worked for the military intelligence service of Poland's Ministry of National Defense and the Polish Agency for Internal Security. They collected and passed on information about Russian military personnel and Ministry of Defense facilities, as well as socioeconomic conditions in the Kaliningrad region and the immigration and social policy areas.
The investigative department of the FSB directorate for the Kaliningrad region opened criminal cases against the two men on suspicion of espionage under Article 276 of the Russian Criminal Code.
A court ordered the detention of the two suspects to be extended.
The FSB also issued official warnings to seven Polish citizens and three Russian citizens who were in contact with the Polish intelligence services. They were warned against taking any action that could facilitate the commission of offenses under the following provisions of the Russian Criminal Code:
Section 275 (high treason).
Section 275.1 (collaboration on a secret basis with a foreign country or international or foreign organization).
Section 276 (espionage).
The seven Polish citizens were banned from entering Russia for an extended period.
In addition, following a security review in 2026, Russia revoked the visas of 14 Polish citizens and banned six from entering the country for aiding the Polish intelligence services.