Police are investigating a collision in Grays involving a girl and moped at around 2.40pm on Tuesday December 8 in Grangewood Avenue.
It was reported the moped involved was travelling with two other mopeds and following the incident the driver got on one of them and left the scene.
The girl involved did not sustain serious injuries.
The area would have been busy at this time of day and there may be people who would have filmed the incident or the aftermath on mobile phones.
Anyone with CCTV, dash cam, or mobile phone footage is being urged to come forward by calling 101 quoting incident 562 of 8 December or via the website: https://www.essex.police.uk/
Alternatively you can call Crimestoppers anonymously on 0800 555 111.