Area Police
Around fifty vehicles have been marked with what appears to be human blood in the German city of Hanau close to Frankfurt, police confirm authorities.
Cars, walls and postboxes were defaced, in some cases with prohibited symbols, they reported in a official communication.
Law enforcement state they were notified during the night on Wednesday, when a individual noticed that a car in the Lamboy neighborhood of Hanau had been smeared with a reddish-hued substance.
The liquid had been drawn in the form of a banned symbol, they stated.
Law enforcement then located numerous other smeared automobiles and residential walls in the surrounding area.
Nazi symbols are illegal in Germany under regulations banning the public display of symbols from the Nazi era.
Law enforcement state preliminary tests suggest the substance was most likely human blood.
"At present there remains no lead as to its origin; officials are presently not informed of any harm in connection with the incident," they added.
City officials stated they were working "to solve the mystery" and have appealed to the residents for details.
A senior representative said the incident rendered him speechless and had to be addressed rapidly.
"This event affects the very heart of Hanau and reopens the wounds of the right-wing attack five years ago," he stated on social media, referring to the murder of nine people by a gunman focusing on people of migrant background in five years prior.