Source: YouTube Policie ČR
summary of incident
On 29 January 2024, in Brno, Czech Republic, two individuals attempted to set fire to a synagogue using an improvised incendiary device in an antisemitic attack linked to a group promoting jihadist ideology.
Details of incident
On 29 January 2024, two individuals attempted to carry out an arson attack on a synagogue in Brno by throwing an improvised incendiary device at the building. The device failed to ignite properly, resulting in no material damage.
Subsequent investigation by Czech authorities identified the perpetrators as part of a small group engaged in the promotion of extremist jihadist ideology, including content linked to the so-called Islamic State. Information about the case was made public by the Police of the Czech Republic in June 2025, and legal proceedings were initiated.
Authorities also reported that the group had engaged in additional violent and hate-motivated activities, including planning further attacks and promoting hostility toward minority groups. The case is being prosecuted as a serious extremist offence involving support and promotion of terrorism.
Context of incident
The incident highlights the role of online environments in the radicalisation of young individuals exposed to extremist propaganda. In this case, authorities noted that the perpetrators were influenced by jihadist narratives and symbolism, often without deeper ideological or religious grounding, but driven by a broader attraction to violence and extremist content.
The targeting of a synagogue reflects the continued presence of antisemitic motivations within violent extremist ideologies. The case also illustrates the intersection of antisemitism with other forms of hate, including hostility toward additional minority groups, within radicalised online subcultures.
Responsible actors or groups involved
The attack was carried out by individuals associated with a small extremist network promoting jihadist propaganda, including material linked to the Islamic State. One member of the group was reportedly in contact with individuals connected to militant organisations.
False narratives or disinformation
The incident reflects the influence of extremist propaganda and ideological narratives that frame Jews and other minority groups as targets of hostility. Such narratives are commonly disseminated through online channels associated with violent extremist movements.
