Teenager Jade Clark died of severe head injuries after a collision on the A31, an inquest was told today.
Coroner's officer Andrew Lord said the 16-year-old was struck by "more than one" vehicle after being knocked off her scooter.
He also read a short summary of the cause of death by pathologist Russell Delaney, who carried out a post-mortem examination.
Coroner Sheriff Payne said: "The Dorset Police investigation is continuing, and the driver of a particular vehicle is being sought, so I will adjourn to a date to be fixed in due course.
"It is likely to be some months before the final date is achieved."
Jade's parents are taking part in a press conference this afternoon in a continued bid to find the driver of a Volvo XC90 who left the scene of the accident. A £1,000 reward has been offered.
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