Area Police
Roughly 50 vehicles have been smeared with what seems to be human blood in the Germany's town of Hanau close to Frankfurt, as reported by police.
Automobiles, walls and postal boxes were marked, occasionally with Nazi symbols, they announced in a official communication.
Police say they were contacted during the night on Wednesday night, when a individual noticed that a vehicle in the Lamboy district of Hanau had been smeared with a reddish-hued fluid.
The substance had been applied in the form of a banned symbol, they reported.
Police then discovered multiple other smeared cars and residential walls in the nearby vicinity.
Swastikas are illegal in Germany under laws prohibiting the public display of Nazi-era symbols.
Officials state early analysis suggest the fluid was most likely human bodily fluid.
"At present there remains no lead as to where it came from; authorities are currently not cognizant of any physical harm in connection with the occurrence," they added.
City officials announced they were attempting "to unravel the incident" and have asked to the community for tips.
A senior official said the attack left him stunned and required to be addressed promptly.
"This act affects the very heart of Hanau and reopens the wounds of the extremist attack five years ago," he wrote on online, referring to the death of nine people by a shooter aiming at residents of migrant background in five years prior.