Area Police
Roughly 50 cars have been covered with what appears to be blood from a person in the German municipality of Hanau near Frankfurt, as reported by authorities.
Cars, walls and postal boxes were vandalized, occasionally with swastikas, they stated in a statement.
Law enforcement say they were notified in the late hours on Wednesday night, when a resident noticed that a vehicle in the Lamboy district of Hanau had been marked with a red-colored substance.
The substance had been applied in the form of a Nazi symbol, they added.
Law enforcement then found many other smeared automobiles and residential walls in the adjacent neighborhood.
Swastikas are prohibited in Germany under legislation prohibiting the visible presentation of Nazi-era symbols.
Law enforcement state preliminary tests indicate the fluid was probably human bodily fluid.
"Currently there is no clue as to its origin; investigators are currently not aware of any injuries in association with the event," they added.
City officials said they were trying "to solve the mystery" and have asked to the community for information.
A senior official said the vandalism made him without words and required to be addressed quickly.
"This event hits the core of Hanau and revives the pain of the right-wing terrorist attack five years ago," he posted on a platform, mentioning the murder of nine people by a shooter aiming at individuals of immigrant origin in 2020.