Berlin: More than 20 people in Germany have been injured after a man with an axe went on the rampage on a train, German media report late on Monday night. A police operation including a helicopter is under way in Heidingsfeld, a part of the city of Wurzburg in southern Germany, BBC reported. Local media (in German) wrote that 21 people had been injured and a suspect appeared to have been shot. The train line between Wurzburg-Heidingsfeld and Ochsenfurt is closed. The German news agency DPA reported that the police said some of the victims' injuries were life-threatening.