On 16 December 2025, the Internal Security Agency (ABW) announced the detention of Mateusz W., a student at the Catholic University of Lublin (KUL), who is suspected of preparing a mass attack at one of the Christmas markets. The information was shared on the platform X (formerly Twitter) by Jacek Dobrzyński, spokesman for the Minister Coordinator of Special Services.
Details of the Detention
According to the ABW statement, Mateusz W. planned to carry out an attack using homemade explosive materials. The man had previously sought knowledge on how to produce such materials, and his goal was to intimidate many people and support the Islamic State, a terrorist organisation. Additionally, the suspect considered joining a terrorist group to obtain help in carrying out his intentions.
During operational activities, ABW officers secured data storage devices and items related to Islam. The court ordered three months of pre-trial detention for the detainee. The investigation is being conducted by the ABW’s Szczecin branch under the supervision of the Szczecin external division of the National Prosecutor’s Office. As emphasised, the case is developing, which means further findings may emerge
Background and Context
The Catholic University of Lublin, where Mateusz W. studied, is one of the oldest Catholic universities in Poland. The news that a student of this institution had been detained caused surprise and numerous speculations. The statement did not provide details about the suspect’s motives or his connections with the university.
Significance of the Case
The detention of Mateusz W. fits into a broader context of counter-terrorism efforts in Poland. The ABW regularly monitors threats linked to extremism, including Islamist radicalisation. Cases like this highlight the need for vigilance in the face of potential threats, especially during the holiday season, when markets attract large crowds.
For now, no further details about the planned attack have been disclosed, but the investigation is ongoing. Authorities are urging the public to report suspicious behaviour, which may help prevent similar incidents in the future. The case will be monitored, and any new information may shed more light on the suspect’s motives and preparations.
