Police are appealing for help identifying two riders who police believe were in the company of a teen charged over a collision in Epping last month.
Police allege the 16-year-old girl was riding a dirt motorbike in parklands in Epping on September 9, when she was involved in a collision with a pedestrian.
The pedestrian was hospitalised.
The teen was charged with criminal and driving offences including failing to render assistance at a collision and was bailed.
Police believe the girl was accompanied by two other riders.
Two motorcycles have been seized so far as part of an ongoing investigation.
Police are seeking the assistance of the public in identifying the other riders.
Anyone with information should contact the Whittlesea Tasking Team on 9216 1200.