As part of sabotage operations purportedly coordinated by Russian intelligence services, Poland has detained nine people, Prime Minister Donald Tusk said on Tuesday.
Being Ukraine's main supply hub, Warsaw has grown to be a major target for Russian espionage operations.
Moscow is charged by the Polish government with trying to employ a number of clandestine activities to destabilize the nation.
Tusk disclosed to TVN24, a private channel, "We currently have nine suspects arrested and charged with engaging in acts of sabotage in Poland directly on behalf of the Russian services." "Beatings, arson, and attempted arson are included in this."
Tusk emphasised that Poland is collaborating with its allies to address this security threat, noting that the sabotage plots also have implications for Lithuania, Latvia, and potentially Sweden.
Earlier this month, Tusk announced that Poland would allocate an additional 100 million zlotys ($25.53 million) to bolster its intelligence services in response to the increasing threat from Russia.
In a related incident in April, Polish authorities detained two individuals suspected of attacking Leonid Volkov, a top aide to the late Russian opposition leader Alexei Navalny, who is currently in exile.