On May 29 at night, unknown perpetrators destroyed decorations on the altar prepared for the Corpus Christi procession in Siedliska. They also tore down decorative trees attached to the Christian community centre, and damaged the stairs of the building. Furthermore, the contents of two garbage bins were spilt next to the altar.
Perpetrators also destroyed an election banner for a candidate in the European Parliament, and damaged a container for bottle caps. To quote a resident of the area, "Such things have never happened here, there must have been several perpetrators, because I doubt that one person would have been able to uproot the trees and part of the stairs."