The German news agency dpa reported today that the man, whose identity was not given, was detained after a tip from a prison inmate in the western city of Gelsenkirchen.
Dpa reported the information about the suspect came in connection with alleged threats against the German Bundesliga soccer league. It did not further elaborate the threat.
The state interior ministry of Rhineland Palatinate, where Mutterstadt is located, could not immediately be reached for comment.