Area Police
Approximately 50 vehicles have been covered with what seems to be human blood in the German city of Hanau close to Frankfurt, police confirm police.
Automobiles, exterior walls and postal boxes were marked, in some cases with Nazi symbols, they announced in a statement.
Law enforcement state they were contacted late on Wednesday night, when a man observed that a car in the Lamboy area of Hanau had been covered with a reddish-hued substance.
The liquid had been placed in the pattern of a swastika, they added.
Police then discovered numerous other smeared automobiles and building exteriors in the nearby vicinity.
Nazi symbols are banned in Germany under laws outlawing the public exhibition of Nazi symbols.
Police state early analysis show the substance was probably blood from a person.
"At present there remains no clue as to its origin; authorities are not yet cognizant of any harm in association with the occurrence," they stated.
City officials announced they were working "to solve the mystery" and have asked to the community for details.
A senior representative stated the vandalism rendered him without words and had to be resolved promptly.
"This act hits the very heart of Hanau and revives the wounds of the right-wing attack five years ago," he wrote on social media, mentioning the murder of nine individuals by a shooter aiming at people of immigrant origin in five years prior.