According to police, the 16-year-old said in testimony that the attacker forced her into the trunk of his car on Wednesday by threatening her with a knife as she headed to work before dawn in the German town of Regensburg.
She was raped at the German-Austrian border and released at Linz train station in northern Austria at around 0900 GMT, the police said in a statement. Despite calling German police via her mobile from the trunk of the car, they were unable to locate the vehicle in time.
The attacker allegedly threatened to kill the girl if she went to the police. The German authorities are appealing for witnesses to come forward.