"The State Protection Service (SOP), in cooperation with the Internal Security Agency (ABW), detected and dismantled devices that could be used for eavesdropping in a room where a Cabinet meeting was due to be held today in Katowice," Jacek Dobrzyński, spokesman for the minister in charge of Poland's security services, wrote on the X social media platform on Tuesday morning.
"The services are carrying out further activities in this matter," he added.
A day earlier, authorities in Warsaw launched a spy probe after a Polish judge asked for political asylum in neighbouring Belarus.
Poland, a hub for Western military supplies to Ukraine amid Russia's invasion, is on heightened alert for any signs of spying activity, the Reuters news agency reported.
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Source: IAR, PAP, Reuters, polskieradio24.pl