Around 90 police officers conducted a series of raids in Germany and Belgium in the early hours of Tuesday investigating a potential terror attacks.
The German police attempted to foil a terrorism plot that involved aeronautics students from the University of Stuttgart, who planned to use two remote-controlled model planes to launch explosives.
Overall, nine flats and other properties were thoroughly checked in Stuttgart, Munich and Saxony, eastern Germany to gain evidence on the possible attack's strategy and arrangements. Police have confiscated documents and technical equipment during the raid.
A spokesman for Germany's Attorney General said that the alleged plot included the use of model planes fixed with explosives.
"The searches in the Stuttgart area and in Belgium were directed against two men of Tunisian origin who are suspected of collecting information and items for the commission of radical Islamist bombings with remote-controlled model aeroplanes," the Attorney General's office said.
Two of the suspected plotters, who were of Tunisian origin, were studying flight and space technology at the university. They were trying to create systems to guide unmanned air-crafts through GPS.
According to the Record, these two students are being currently investigated. The two Tunisians are suspected of 'procuring information and objects to commit Islamic extremist explosive attacks with remote-controlled model airplanes.'
The police also targeted homes of four of the men's associates, who are being investigated on financing Islamic extremism; one of the acquaintances of the suspected plotters is being grilled for money laundering.
The authorities have not yet arrested any of the suspects.
"The aim of today's search is to obtain evidence of potential attack plans and preparations, and to gain insight into the means of financing radical Islamist terrorism."
The police believe that the alleged plan was in early stages.
