Area Police
Roughly 50 cars have been marked with what appears to be human blood in the Germany's municipality of Hanau near Frankfurt, as reported by law enforcement.
Vehicles, walls and mailboxes were defaced, in some cases with Nazi symbols, they announced in a release.
Officers report they were contacted during the night on Wednesday evening, when a man discovered that a car in the Lamboy area of Hanau had been covered with a reddish substance.
The substance had been applied in the form of a swastika, they reported.
Law enforcement then located multiple other smeared automobiles and building exteriors in the nearby vicinity.
These symbols are prohibited in Germany under legislation outlawing the public display of Nazi-era symbols.
Law enforcement report initial examinations suggest the substance was most likely blood from a person.
"At present there remains no clue as to its origin; investigators are currently not cognizant of any injuries in relation with the event," they stated.
Local authorities said they were working "to resolve the mystery" and have asked to the residents for details.
A high-ranking political figure commented the incident rendered him without words and needed to be resolved promptly.
"This event hits the core of Hanau and reopens the pain of the right-wing violent incident five years ago," he posted on a platform, referring to the death of nine victims by a assailant focusing on people of foreign heritage in five years prior.