'Like a sound from hell': Was an illegal sonic weapon used against peaceful protesters in Serbia? - The Associated Press

[News]

1. 'Like a sound from hell': Was an illegal sonic weapon used against peaceful protesters in Serbia? The Associated Press
2. Calls grow in Serbia for investigation into claims ‘sound cannon’ targeted protesters The Guardian
3. Did Serbia use a similar sound cannon to Romania in 1989? DW (English)
4. Serbia’s govt accused of using a sonic weapon against protestors: What is this device? The Indian Express