Four teenagers on Monday were handed jail terms for involvement in the gang rape of a 13-year-old girl in a wooded area in the south-western German town of Velbert.
Eight boys aged between 14 and 17 were accused of ambushing the girl, dragging her into a wooded area and gang raping her before a passer-by intervened.
All eight are of Bulgarian origin and only six were sentenced in the regional court in Wuppertal.
The remaining two, who absconded to Bulgaria with their families after the incident, were arrested there some time later and will face trial separately.
A spokeswoman for the court said the main perpetrator had been handed four years and nine months in prison, while his main accomplice received a 4-year sentence.
Two others received shorter jail terms, while the remaining two were sentenced to probation.
Prosecutors said the evidence against the boys was overwhelming.
It included video footage filmed on one of their mobile phones, DNA samples taken from the victim, and testimony from the woman who interrupted the crime.