Local Police
Around fifty cars have been covered with what appears to be human bodily fluid in the German city of Hanau near Frankfurt, according to authorities.
Automobiles, walls and postboxes were vandalized, in some cases with swastikas, they announced in a statement.
Police state they were notified late on Wednesday night, when a resident observed that a automobile in the Lamboy neighborhood of Hanau had been covered with a red-colored substance.
The fluid had been drawn in the form of a banned symbol, they added.
Police then discovered many other smeared vehicles and building exteriors in the adjacent neighborhood.
Swastikas are illegal in Germany under legislation banning the public exhibition of Nazi-era symbols.
Officials state preliminary tests show the liquid was most likely human blood.
"Currently there is no clue as to where it came from; authorities are currently not cognizant of any harm in relation with the incident," they added.
Local authorities stated they were attempting "to solve the mystery" and have appealed to the residents for information.
An important political figure said the incident rendered him stunned and required to be solved quickly.
"This event affects the center of Hanau and revives the pain of the far-right terrorist attack five years ago," he wrote on social media, mentioning the killing of nine victims by a assailant focusing on residents of immigrant origin in five years prior.