text: German police probe sex link in child kidnap case . BERLIN 1996-08-30 German police searching for a missing 10-year-old schoolgirl said on Friday the prime suspects in the case may have been involved in running a child prostitution ring . Police suspect Nicole Nichterwitz 's aunt and a male companion abducted the girl and took her to the Netherlands . She was last seen being collected by the pair from school in Velten near Berlin on Monday . Public prosecutors said they had found a list of children 's names and ages at the couple 's flat . The list was being studied for possible links to previous child kidnappings and prostitution , a prosecutors ' spokesman told Reuters .