The central railway station in the German city of Bielefeld has been reopened following an attack threat. No suspicious objects were found during a search with sniffer dogs, the police announced on Monday evening. State security is investigating. “An investigation is underway into the criminal offence of “disturbing the public peace by threatening to commit criminal offences”, it said. Earlier on Monday afternoon, numerous officers had searched Bielefeld Central Station after a telephone threat was received. The station building and the station forecourt were temporarily closed and rail traffi…