Local Police
Around 50 automobiles have been covered with what seems to be blood from a person in the German town of Hanau near Frankfurt, according to authorities.
Automobiles, walls and postal boxes were marked, sometimes with Nazi symbols, they reported in a official communication.
Officers state they were contacted in the late hours on Wednesday evening, when a man discovered that a vehicle in the Lamboy district of Hanau had been marked with a reddish-hued liquid.
The substance had been placed in the form of a swastika, they added.
Officers then discovered multiple other vandalized automobiles and building exteriors in the surrounding area.
Swastikas are illegal in Germany under laws prohibiting the public exhibition of symbols from the Nazi era.
Police report preliminary tests indicate the substance was most likely human blood.
"There is still no lead as to where it came from; authorities are currently not aware of any injuries in relation with the incident," they added.
Local authorities announced they were attempting "to unravel the mystery" and have requested to the residents for details.
An important official said the incident left him speechless and had to be resolved quickly.
"This incident strikes at the very heart of Hanau and reopens the wounds of the extremist attack five years ago," he stated on online, referring to the murder of nine individuals by a shooter focusing on residents of immigrant origin in five years prior.