German police on alert after Islamic State calls for carnival attacks

Police are on high alert ahead of Germany's traditional carnival celebrations this week after social media connected to the Islamic State militant group called for attacks targeting revellers in Cologne and Nuremberg, said police spokespeople. Bild newspaper reported that a German-language propaganda site run by IS had published a computer-created collage image calling on viewers to "choose your next attack target", and listed the dates and locations of upcoming carnival events.