School bomb threats: NNI launches international investigation, Serbian schools also targeted
The NNI is investigating October school bomb threats in cooperation with foreign authorities, affecting multiple countries. School prank ruled out – the threat constitutes a crime punishable by up to eight years imprisonment.

NNI investigates international links in school bomb threats case
According to eduline.hu, Monday's wave of school bomb scares did not prove to be a student prank – the case is now being investigated by the National Investigation Bureau (NNI) in cooperation with foreign counterparts.
Police Lieutenant Colonel Mónika Kész-Varga, spokesperson for the NNI, said on Tuesday morning during the Balázsék breakfast programme that since schools received threats in multiple countries – including Serbia – the investigation has extended to international lines. Institutions in Vojvodina and Transylvania were also affected by the bomb threat.
The spokesperson emphasised that the NNI's cyber protection specialists are continuously working on the case. She ruled out the possibility of a student prank: threatening to commit a terrorist act is classified as a crime, for which imprisonment ranging from two to eight years can be imposed.
On 19 October – the day of the threats – no explosive devices were found in any facility. On that day, several media service providers received a letter stating: "The day of revenge has come." The letter listed more than a dozen schools in Budapest and across the country, claiming that explosive devices had been placed in their buildings.
On Monday, approximately seventy schools in the provinces and capital were threatened, and on Tuesday, bomb disposal experts examined additional Budapest secondary schools. Extraordinary teaching suspension was declared at Miklós Radnóti Secondary School, and the Trefort building was swept in the morning. In several Budapest districts, pupils had to be relocated during the examination period.
Kész-Varga Mónika also noted that the investigation into school bomb scares in January 2025 is still ongoing: so far, authorities have not been able to identify who sent the threatening emails at that time.
Source: Google News HU — Crime (hu)