A suspect is detained by plain clothes police during a raid at a house in the Kreuzberg district of Berlin...
A suspect is detained by plain clothes police during a raid at a house in the Kreuzberg district of Berlin, Germany February 4, 2016. German police conducted raids in Berlin and other parts of northern Germany on Thursday in a search for four men suspected of links to Islamic State militants and possibly preparing an attack in Germany, police said. REUTERS/Fabrizio Bensch TPX IMAGES OF THE DAY