The teenager, identified as Mohammad A., is accused of aiding the main suspect by interpreting bomb-making instructions and translating an Islamic State oath of allegiance. The charges filed against him include supporting a foreign terrorist organization and preparing a serious act of violence. Though details about his age remain undisclosed, he has not been taken into custody due to his minor status.

The investigation was sparked by a credible tip from U.S. intelligence, leading to the arrest of a 19-year-old Austrian with Macedonian heritage as the primary suspect. Authorities discovered an array of weapons and explosives components during a search of the suspect's family home in Ternitz, located about 40 miles south of Vienna. This suspect is currently in custody as the case continues.

Additionally, another teenager, a 17-year-old Austrian, was detained in August as a potential accomplice but has since been released without formal charges. The Syrian teenager reportedly became radicalized online and facilitated the connection between the primary suspect and an Islamic State associate via social media platforms.

The cancellation of Taylor Swift's concerts in Vienna not only disrupted fans but also impacted the local economy, as her events are known to generate substantial revenue for cities that host them.