Area Police
Roughly 50 cars have been covered with what seems to be human blood in the German town of Hanau close to Frankfurt, according to law enforcement.
Cars, walls and postal boxes were defaced, in some cases with swastikas, they announced in a official communication.
Police say they were contacted late on Wednesday night, when a resident observed that a car in the Lamboy district of Hanau had been smeared with a red-colored fluid.
The substance had been drawn in the shape of a banned symbol, they reported.
Officers then found many other marked cars and residential walls in the nearby vicinity.
Swastikas are banned in Germany under laws prohibiting the public display of Nazi symbols.
Law enforcement report initial examinations show the fluid was most likely human blood.
"There is still no clue as to where it came from; officials are presently not informed of any harm in relation with the event," they commented.
Municipal representatives announced they were attempting "to solve the mystery" and have asked to the public for details.
A high-ranking official stated the vandalism rendered him speechless and required to be solved quickly.
"This act affects the core of Hanau and reopens the pain of the extremist attack five years ago," he wrote on online, mentioning the murder of nine individuals by a assailant targeting residents of migrant background in five years prior.