Local Police
Approximately fifty vehicles have been smeared with what seems to be human blood in the Germany's town of Hanau near Frankfurt, according to authorities.
Cars, exterior walls and postboxes were defaced, occasionally with Nazi symbols, they stated in a release.
Law enforcement say they were notified during the night on Wednesday night, when a man noticed that a car in the Lamboy district of Hanau had been smeared with a reddish liquid.
The fluid had been placed in the shape of a swastika, they reported.
Officers then discovered many other marked cars and house walls in the surrounding area.
Swastikas are prohibited in Germany under regulations prohibiting the public exhibition of symbols from the Nazi era.
Law enforcement say early analysis suggest the fluid was likely human blood.
"At present there remains no lead as to its source; investigators are currently not cognizant of any physical harm in connection with the incident," they added.
Municipal representatives said they were attempting "to resolve the case" and have requested to the public for tips.
A senior official said the vandalism rendered him speechless and required to be solved rapidly.
"This incident affects the very heart of Hanau and reawakens the trauma of the far-right attack in 2020," he posted on social media, recalling the death of nine victims by a assailant targeting people of foreign heritage in February 2020.