MAINZ, Germany — Police are investigating after an explosion rocked central Cologne in western Germany on Monday. The explosion happened within the front means of the Self-importance nightclub within the Hohenzollernring space, referred to as a first-rate leisure district of Cologne, at round 5.50 a.m. native time, a police spokesman advised NBC Information. The police stated that a minimum of one individual may were relatively injured within the incident. A number of glass home windows it appears burst within the explosion “and may have most likely harmed extra folks, if the explosion had befell at a later time,” the spokesman stated.Native government stated in a publish on X on Monday {that a} “main” police operation was once underway as they prompt citizens to keep away from the Hohenzollernring space. The reason for the explosion was once now not instantly transparent.Police advised NBC Information that the world is beneath CCTV surveillance and that the photos might be a part of the continued investigation.It is a growing tale. Please test again for updates.Andy Eckardt reported from Mainz, and Chantal Da Silva from London.