Serbian officials are denying that security forces illegally used a military-grade sonic weapon to disperse and scare protesters at a huge anti-government rally.

Serbian officials denied Sunday that the country's security forces used a military-grade sonic weapon to disperse and scare protesters at a huge anti-government rally in the capital. Rights groups claimed that the widely banned acoustic weapon was used during the protest Saturday.

By bne IntelliNews The Serbian police have been accused of using a sonic cannon against protesting students on March 15 when the largest protest against strongman Aleksandar Vucic was held in the capital Belgrade.