Area Police
Around fifty vehicles have been marked with what appears to be human bodily fluid in the Germany's city of Hanau near Frankfurt, as reported by police.
Cars, walls and mailboxes were defaced, in some cases with Nazi symbols, they stated in a statement.
Officers say they were notified late on Wednesday evening, when a man noticed that a car in the Lamboy neighborhood of Hanau had been covered with a red-colored liquid.
The substance had been placed in the form of a swastika, they stated.
Officers then found many other smeared vehicles and house walls in the nearby vicinity.
Nazi symbols are illegal in Germany under legislation prohibiting the public exhibition of Nazi-era symbols.
Police state initial examinations suggest the fluid was probably human blood.
"Currently there is no indication as to where it came from; authorities are presently not informed of any harm in association with the occurrence," they stated.
Municipal representatives stated they were trying "to unravel the mystery" and have appealed to the residents for tips.
A senior representative said the attack left him without words and required to be addressed rapidly.
"This event hits the very heart of Hanau and reopens the wounds of the extremist violent incident half a decade ago," he wrote on a platform, recalling the murder of nine victims by a gunman targeting residents of migrant background in February 2020.