NTV television reported that German police special forces had arrived at the scene.

"Many shots were fired, I can't say how many but it's been a lot," the employee, who declined to be identified, said from the mall in Munich.

ALSO READ: 15 reportedly killed in Munich shopping mall shootout

Meanwhile, Police have closed off a wide area around a large Munich shopping centre after shots were fired, a spokeswoman for the police said on Friday.

No details were immediately available on injuries or who was responsible for the shooting, the spokeswoman said.

An official at the Munich Olympia Shopping Centre declined comment, saying only, "We are experiencing a problem."