Area Law Enforcement
Approximately 50 vehicles have been covered with what appears to be human blood in the German town of Hanau close to Frankfurt, police confirm police.
Vehicles, exterior walls and postal boxes were defaced, occasionally with swastikas, they stated in a official communication.
Police state they were contacted late on Wednesday night, when a individual noticed that a car in the Lamboy district of Hanau had been smeared with a reddish-hued fluid.
The liquid had been drawn in the shape of a Nazi symbol, they reported.
Law enforcement then located many other marked cars and building exteriors in the nearby vicinity.
Swastikas are prohibited in Germany under regulations banning the public display of Nazi-era symbols.
Law enforcement say early analysis show the liquid was probably blood from a person.
"At present there remains no lead as to where it came from; officials are not yet informed of any harm in association with the event," they added.
Municipal representatives said they were trying "to solve the mystery" and have requested to the community for details.
An important political figure said the incident made him stunned and had to be resolved rapidly.
"This event strikes at the center of Hanau and reawakens the pain of the far-right terrorist attack five years ago," he posted on a platform, mentioning the killing of nine victims by a shooter aiming at individuals of immigrant origin in five years prior.