The second suspect arrested in Germany in connection with two failed bomb attacks on German trains arrived by police helicopter at the Federal Prosecutors Office for interrogation on Saturday (August 26). Authorities in Konstanz, Germany and Lebanon on Friday (August 25) detained two more suspects in connection with the bomb plot in July. Two men were caught on security videos dragging suitcases onto trains in Cologne last month. Suitcases like those in the footage were found packed with propane gas tanks and crude detonating devices on trains in the German cities of Dortmund and Koblenz. The explosives failed to detonate. Germany's Federal Prosecutors Office said police in the southern state of Baden-Wuerttemberg had "taken into temporary custody" a new suspect and that they had searched a room in a student dormitory in the city of Konstanz. Lebanese authorities have also arrested a new suspect they believe may have been involved in the plot, a senior Lebanese judicial source said in Beirut.