Key facts
- Russia's FSB said it arrested two people it described as Polish secret service agents.
- The FSB said they were gathering information on military facilities in the Kaliningrad region, Interfax reported.
- The FSB said it warned seven Polish citizens and three Russian nationals over contacts with Polish security services.
Russia's Federal Security Service said on Wednesday it arrested two people described as agents of the Polish secret services, Interfax reported. The FSB said the two were gathering information on military facilities in Russia's western Kaliningrad region.
Interfax also cited the FSB as saying it warned seven Polish citizens and three Russian nationals over what it said were their contacts with the Polish security services. The FSB did not identify the two arrested or say when they were detained.
Kaliningrad is a Russian exclave on the Baltic Sea that borders Poland and Lithuania. It has occasionally been a flashpoint between Russia and the European Union and NATO.