Fourteen Serbian non-governmental organizations are requesting a United Nations investigation into claims that a “sonic weapon,” referred to as a “sound cannon,” was deployed against protestors in Belgrade last year. The NGOs allege the device was used in an attempt to disperse a demonstration. They are urging the Serbian state to formally request a fact-finding mission from the UN to determine the veracity of these claims. The groups express concern over potential human rights violations if the allegations are substantiated. Details regarding the specific protest and the alleged use of the device remain limited, pending investigation. The NGOs hope an independent UN inquiry will provide clarity and accountability. This call for investigation highlights growing concerns about the use of non-lethal weaponry and its potential impact on peaceful assembly.