Polish police have detained a man suspected of threatening and planning an attack on Prime Minister Donald Tusk, hours after security services convened an emergency meeting over a reported threat to him and Defence Minister Wladyslaw Kosiniak-Kamysz.
Interior Minister Marcin Kierwinski announced the arrest on Sunday. Authorities have not publicly identified the suspect or disclosed the alleged method, motive or stage of preparation.
Arrest follows an urgent security review
The detention is a significant development in the case. GlobeTV reported earlier on Sunday that the alert had prompted an emergency meeting, but that no suspect or arrest had been announced at that point.
According to Reuters, Kierwinski said the detainee was a man in his sixties from Lower Silesia and that investigators identified him through analysis of material posted online. The Associated Press separately reported the arrest, while noting that officials had not released details of the alleged plan.
Tusk confirmed the detention in a post on X and thanked police for acting quickly. Kosiniak-Kamysz also publicly acknowledged the authorities' response, according to Polish and international media.
How the alert reached police
Earlier on Sunday, officials said information about a possible attack first reached the State Protection Service, which is responsible for safeguarding senior state figures, and was then passed to police. The alert concerned both Tusk and Kosiniak-Kamysz.
Jacek Dobrzynski, spokesperson for the minister coordinating Poland's intelligence services, said before the arrest that authorities considered there to be a high probability that the threat could be acted upon. Representatives of the police, State Protection Service, Internal Security Agency and Interior Ministry met to coordinate their response.
Government spokesperson Adam Szlapka said Tusk was informed on Sunday morning and continued his official schedule. The prime minister's office had separately listed a meeting involving ministers and security chiefs in connection with recent school violence and disinformation.
Important details remain undisclosed
Officials have not publicly announced any charge, named a suspected organisation or attributed the alleged plot to a foreign actor. They have also not said whether investigators recovered weapons or other material evidence.
Those gaps matter because the case remains at an early stage. The arrest confirms that police identified and detained a suspect, but it does not establish guilt. Any allegation will need to be tested through Poland's criminal justice process.
The investigation comes during a period of heightened concern about violence and political threats in Poland. Authorities were already responding to several school attacks in Mazovia province during the previous week. Officials have not presented evidence connecting those incidents with the threat involving Tusk and Kosiniak-Kamysz.
What happens next
Police and prosecutors are expected to determine whether there is sufficient evidence for formal charges and pre-trial detention. Further official statements may also clarify the nature of the alleged plan and whether the suspect acted alone.
Until those details are released, the confirmed facts remain limited: authorities received a warning, treated it as credible enough for an emergency response and later detained a man suspected of threatening and planning an attack.