A priest was killed and four other people were injured in a knife attack at a Catholic abbey in Jarosław, south-east Poland. A 31-year-old Ukrainian man was arrested, while authorities investigate his motive; Polish and Ukrainian leaders condemned the violence and called for a firm legal response.

Police said four men and one woman were stabbed on the abbey grounds on Thursday morning. Reports indicate the attacker first injured a priest at a nearby café before continuing inside the abbey; the victim’s name has not been released, and psychological support is being offered to those affected. The incident comes amid tensions and occasional violence involving Poles and Ukrainians in Poland, which hosts many Ukrainians displaced by Russia’s invasion.