Serbian opposition figure Zdravko Ponoš has faced police questioning over his assertions that authorities deployed a sonic weapon against anti-government demonstrators in Belgrade on March 15, 2025. The inquiry forms part of an investigation aimed at determining whether Ponoš’s social media post, which described the use of a “sound cannon,” could be classified as a criminal act for inciting panic and disorder.
Ponoš’s allegations surfaced following a silent vigil held to honor victims of the Novi Sad railway station canopy collapse. During the event, which evolved into one of Serbia’s largest protests, hundreds of thousands gathered to demand accountability for the disaster. Attendees reported hearing an unusual loud noise that led to a brief stampede, with many claiming it occurred just before the crowd began to disperse in panic.
The Serbian authorities have initiated a thorough investigation into the incident, scrutinizing whether the alleged use of a sound cannon was accurately portrayed or potentially orchestrated. As part of this effort, officials have questioned organizers of the protest, attendees, and those who have publicly commented on the incident. Ponoš later claimed that details from his police interview were leaked to a media outlet supportive of the government shortly after his questioning concluded.
In response to concerns about the integrity of the domestic investigation, a coalition of Serbian civil society organizations has urged the United Nations to launch an independent fact-finding mission. They argue that the investigation has been subjected to political influences, potentially compromising its objectivity. The coalition’s call underscores the tense political climate surrounding the protest and the alleged use of sonic devices.