The incident follows a significant increase in security around Jewish institutions in the city. This heightened alert was prompted by an arson attack on a synagogue in central Rotterdam early Friday morning.
Later that day, police arrested four suspects in connection with the Rotterdam attack—three young men aged 18 to 19 and a 17-year-old minor. The officers intercepted a vehicle moving suspiciously near another synagogue; the driver’s description matched a suspect from the previous attack.
Police have announced a "large-scale investigation" into these events and have called on the public to provide any relevant information. A police spokesperson stated it is currently unclear if the suspects intended to detonate additional explosives or target other synagogues. A specific motive has not yet been officially released.
An unverified video has circulated on social media showing an explosion near a building resembling the targeted synagogue; police confirmed this footage is being examined as part of the investigation.
Additionally, in neighboring Belgium, an explosion caused a fire at a synagogue in the city of Liège earlier this week.
Mayor Halsema stated: "This is a cowardly act of aggression against the Jewish community. Jews in Amsterdam are increasingly confronted with antisemitism, and this is unacceptable."