Serbian officials have denied allegations security forces deployed a military-grade Long Range Acoustic Device.

Student demonstrators who gathered in Belgrade on March 15 were panicked by a loud, strange sound some described as "creepy." ...

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Serbian authorities deny they used sound cannon — a.k.a. sonic weapons — against Belgrade protesters. How would you know you had been hit?

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Serbian officials have denied the country’s security forces used a long range acoustic device to disperse and scare protesters.