On Thursday, 24 September, a tragic incident unfolded at the Benedictine Sisters Monastery in Jarosław, Poland, where five individuals were stabbed during a morning Mass service. The attack resulted in the death of a priest and left several others seriously injured.
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The Jarosław County Police reported that the incident occurred around 9.30 a.m. local time when a 31-year-old Ukrainian man allegedly launched an assault on worshippers. Eyewitnesses described scenes of chaos as the attacker wielded a knife, with one victim reportedly being a prominent member of the clergy.

Among the injured was Father Stanisław, who succumbed to his injuries, according to Sister Barbara Dendor, who spoke to the state broadcaster TVP Info. She noted that another priest, Father Marek, was in “serious condition” and undergoing surgery at a hospital in Jarosław. The local cathedral in Rzeszów confirmed via social media that prayers were being offered for Father Marek’s recovery and for the souls of those affected by the tragedy.
Reports indicate that the four male victims, all clergy members, sustained severe injuries, while a female victim’s identity remains unknown. Police are conducting an extensive investigation into the circumstances surrounding the incident, including the potential motives of the assailant.
Witnesses at the scene recounted their panic and shock at the violent outburst. “When I arrived, there was total panic,” Sister Barbara recounted, adding that young people present described the attack as being perpetrated by “some madman.” This reflects the widespread alarm felt within the community during the sudden and violent act.
The Polish Minister of Interior and Administration, Marcin Kierwiński, addressed the incident on social media, confirming the swift detention of the suspect. “A Ukrainian citizen was immediately detained after an attack on five people. The services are investigating the motives and circumstances of the incident,” he stated, emphasising the ongoing efforts of law enforcement to uncover further details.
Further insight into the victims’ condition was provided by the District Prosecutor’s Office in Przemyśl. Prosecutor Małgorzata Taciuch-Kurasiewicz confirmed that the fatality was indeed a clergyman and remarked on the nature of the injuries suffered by the victims, believed to have been caused by a kitchen knife. The police have continued to gather evidence from the scene to ascertain a clearer picture of the events that transpired.
As investigations continue, the local community and beyond have expressed deep sorrow over this violent act. The Benedictine Sisters Monastery, known for its peaceful and spiritual gatherings, has now become the focus of national attention, drawing condolences and support for the victims’ families.
The attack has reignited discussions in Poland regarding security in places of worship, and responses from local and national authorities will likely evolve as more details about the suspect and the motives for the attack surface. In such distressing times, the community is rallying to support those affected and to honour the memory of Father Stanisław, while hoping for a swift recovery for Father Marek and the other victims.
