Area Police
Roughly fifty vehicles have been smeared with what seems to be human bodily fluid in the Germany's municipality of Hanau close to Frankfurt, as reported by law enforcement.
Vehicles, walls and mailboxes were defaced, sometimes with prohibited symbols, they reported in a statement.
Police say they were contacted late on Wednesday evening, when a man noticed that a vehicle in the Lamboy neighborhood of Hanau had been marked with a reddish-hued liquid.
The fluid had been placed in the shape of a Nazi symbol, they added.
Police then located numerous other vandalized cars and residential walls in the adjacent neighborhood.
Swastikas are banned in Germany under laws outlawing the public display of Nazi-era symbols.
Law enforcement say early analysis indicate the substance was probably human blood.
"There is still no clue as to where it came from; officials are not yet cognizant of any injuries in association with the event," they added.
Local authorities stated they were working "to unravel the case" and have asked to the community for details.
A senior representative said the incident left him speechless and had to be addressed quickly.
"This incident affects the center of Hanau and reopens the pain of the far-right attack five years ago," he wrote on social media, recalling the killing of nine individuals by a shooter focusing on residents of foreign heritage in five years prior.