Mystery sound at Serbia protest sparks sonic weapon allegations

FILE PHOTO: Students and anti-government demonstrators take part in a protest, which has become a national movement for change following the deadly November 2024 Novi Sad railway station roof collapse, in Belgrade, Serbia, March 15, 2025. REUTERS/Igor Pavicevic/File Photo

BELGRADE (Reuters) - Tamara Bojanovski was in a crowd of anti-government protesters in Belgrade on March 15 when she heard a sound "like some powerful machine hurtling up from behind".

Thousands of others heard it too; the crowd packed into one of the Serbian capital's main boulevards parted abruptly, rushing to the sidewalks.