Officials of SANS have detained five German citizens at the Kapitan Andreevo border checkpoint on the border with Turkey, as one of them is underage. They travelled by train from Bucharest to Istanbul.

The behavior of detainees revealed signs of radicalization, characteristic of the so-called foreign terrorist fighters. According to the data gathered, four of the detainees were involved in supporting a terrorist organization operating in Syria and Iraq. The underage aimed at reaching the territory of Syria in order to join a terrorist group. The four adults were expelled from Bulgaria and measures were taken in order for the underage person to be handed over to family members in Germany.