The suspect was indicted in early August for involvement in a terrorist group and inciting to commit a terrorist act.
She is suspected of having posted a message on Telegram on July 15 in which she invited an attack on the Grote Markt against Belgian supporters who attended the return of the Red Devils after the World Cup.
According to the last hour, the message was noticed by the Belgian judicial authorities because this inhabitant of Uccle was under the supervision of state security since she came to Syria in July 2015 to join the hunters of the Islamic State.
The federal prosecutor also confirms that the suspect is the older sister of B. S. (15), missing in 2017 on her way to Syria with her partner and his girlfriend. Upon her return, the teenager was detained on suspicion of involvement with a terrorist group.