A Polish security services official on Tuesday said that devices had been located and taken apart in a government meeting room that was about to be used by ministers.
The Cabinet was meeting in Katowice, a southwestern Polish city where Prime Minister Donald Tusk was attending an economic conference.
"The State Protection Service, in cooperation with the Internal Security Agency, detected and dismantled devices that could be used for eavesdropping in the room where the meeting of the Council of Ministers is to be held today in Katowice," spokesperson Jacek Dobrzynski wrote on X, formerly Twitter.
The discovery comes as Poland and other NATO members find themselves increasingly targets of Russian espionage in the wake of Moscow's invasion of neighboring Ukraine.
It was revealed a day after a Polish judge fled to neighboring Belarus and reportedly asked for asylum over spying allegations that he claimed were "fabricated".
Polish prosecutors have started an espionage investigation into the judge.
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rc/ (AFP, AP, Reuters)