The author wrote that the head of the Internal Security Agency warned last year about possible acts of violence in schools by students. He pointed out that three warning signals appeared in September: the disclosure of a plan for an attack at a school in Silesia, an axe attack on a student in Ptakach near Kolno, and a thwarted attack in Książki. https://t.co/Yte2bjLy5j #przemocwszkołach #bezpieczeństwo #edukacja #PL (translated)
