BELGRADE, Serbia — Ivana Ilic Sunderic had never heard anything quite so alarming and disturbing at a protest as the sound that broke a commemorative silence during in Serbia’s capital, Belgrade.
“It was quiet and peaceful and then we heard something we could not see … like a sound rolling toward us, a whiz,” Ilic Sunderic said about the March 15 incident. “People started rushing for safety toward the pavement, feeling that something was moving toward us down the street.”
It was “a subdued sound lasting only 2-3 seconds but very unusual and very frightening, like a sound from hell,” she said.
Ilic Sunderic was not alone in describing the panic. Hundreds of others have offered similar accounts, triggering accusations that the police, military or security services under the tight control of authoritarian Serbian President Aleksandar Vucic to target peaceful protesters.
The weapons, which are illegal in Serbia, emit sound waves which can trigger sharp ear pain, disorientation, eardrum ruptures or even irreversible hearing damage.
The incident piled more pressure on by protests over the collapse in November of a concrete canopy at a railway station in the northern town of Novi Sad that killed 16 people.
Serbia’s officials have issued often contradictory denials that an acoustic weapon was directed at the demonstrators. as to what caused the sudden commotion, if not a sonic device.
An Associated Press video shows thousands of protesters holding up their lit mobile phones in silence when they suddenly start running away in panic. A swooshing sound can then be heard.
“I have been going to protests for 30 years but I’ve never heard anything like this,” Ilic Sunderic said.
Lies and fabrications
A defiant Vucic has rejected what he called “lies and fabrications” that the security services targeted the demonstrators with a sonic device. He said that such accusations are part of an alleged
“If there was a single piece of evidence that a sound cannon was used against demonstrators, then I would no longer be president,” he said.
Serbia’s police, army and the state security agency, BIA, initially all denied possessing the U.S.-made Long Range Acoustic Device (LRAD), which is illegal in Serbia and some other countries. When presented with photos of the device mounted on an off-road vehicle and officials admitted possessing a sonic weapon, but insisted it was not used against the protesters.
The photos showed nothing more than “loudspeakers” that also are available on eBay, Interior Minister Ivica Dacic said. The rectangular devices, purchased from a U.S. supplier in 2021, serve to emit warnings to the crowds in case of major trouble, he said.
“Serbian police have never, including March 15, used any illegal or unallowed device that is not envisaged by the law, including the device known as a sound cannon,” Dacic said. “Police only use sound devices for warnings.”
Sonic weapons use sound waves to incapacitate, disorient or harm individuals by harnessing acoustic energy, causing both physical and psychological effects, such as dizziness, disorientation or severe headaches.
Although often described as non-lethal, their use in military, law enforcement and covert operations has raised serious ethical concerns.
More recently, sonic devices have been used against Somali pirates as well as migrants in Greece and reportedly in Serbia.
Images from the Belgrade protest show what appears to be an LRAD 450XL.
The California-based manufacturer, Genasys, said on X that “the video and audio evidence we have seen and heard thus far does not support the use of an LRAD during the March 15th incident in Belgrade, Serbia.”
Hundreds complained of consequences
Many who were in the crowd later complained of headaches, confusion, ear pressure or nausea.
Sasa Cvrkovic, a 23-year-old political science student from Belgrade, described the sound as a “jet that flew past like some kind of wind.” He said that it created panic and a brief stampede: “One young man next to me broke his leg.”
Cvrkovic said he felt nauseous all through the day after the demonstration. Ilic Sunderic said she felt pressure in her head and ears.
Reports also have emerged of to withhold records of hundreds of people who sought medical help and advice after the rally.
Experts doubt the official version
Thomas Withington, an expert in electronic warfare, radar and military communications at the Royal United Services Institute think tank, said he reviewed some of the videos from the Belgrade stampede.
“Extraordinary film of people gathering, protesting in the streets peacefully, the demonstration,” he said in an interview. “And suddenly, an almost kind of biblical passing of a huge number of people in a very panicked rush, very sudden and very panicked movement, and the likes of which I must confess I’ve never seen before.”
He said it was clear that something caused several hundred people to suddenly panic and move in a very specific way, rushing for cover to the pavement and abandoning the middle of the street.
“So certainly, the behavior that you see on the film does appear to be consistent with people reacting en masse to something that is making them feel deeply unsettled or deeply uncomfortable,” he said.
Predrag Petrovic, a research manager at the Belgrade Center for Security Policy, a think tank, said, “We can claim with huge probability that some unconventional weapon, some version of a sonic cannon, was used.”
“I have a lot of experience in participating and monitoring street protests and I have never seen a stampede happen in a second and along an almost straight line,” Petrovic said.
In an online petition signed by over half a million people, the Serbian opposition Move-Change movement asked the United Nations, the Council of Europe and the Organization for Security and Cooperation in Europe for an independent investigation.
Several Serbian rights groups announced Tuesday they have taken the issue to the European Court of Human Rights, saying that they collected more than 4,000 testimonies from people who complained of various physical and psychological problems after the incident on March 15. The court in Strasbourg has given Serbia until the end of the month to respond, the groups said in a joint statement.
Vucic’s pro-Russia government, however, invited the U.S. Federal Bureau of Investigation and Russia’s Federal Security Service, the FSB, to investigate. There has been no immediate answer from the American and Russian security agencies.
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