POLICE in Germany are hunting an unknown perpetrator who threw wine bottles filled with oil onto roads in Bavaria, resulting in the death of a 37-year old biker.

The 37-year-old motorcyclist skidded on an oil slick and crashed head-on into an oncoming passenger car, the married man, father of two children aged five and ten years, died at the scene. The 60-year-old car driver was only slightly injured.

Police received calls stating that the deliberate oil spill was not limited to just the one area, at least 10 different locations had been reported where champagne and wine bottles filled with motor oil were strewn across the road.

Police do not know if it's the work of a mentally ill person or a kid's prank, however the distance between the locations suggests the offender was able to cover ground quickly.