One person was killed and another wounded in a shooting at a Mercedes-Benz factory in the south of the Germany the Bild newspaper reported on Thursday.
Bild said one person had been arrested and that rescue workers were on site at Factory 56 in Sindelfingen, where S-Class cars are being assembled.
Police confirmed on Twitter that an operation was underway at the factory but did not indicate any injuries.
Mercedes confirmed that the incident occurred at the factory and that it was in contact with the authorities, without elaborating.
"We are in contact with the authorities and trying to clarify the facts," the company said in a statement.