Shortly after 8pm on Monday 8 January 2024, a teenage boy was approached by a group of around eight people near the Park Crescent entrance to Dane Park.
He was reportedly assaulted before the group stole his bag and phone and left the area.
One of the group is described as a white, teenage male, around 5ft, 11ins tall and was wearing a grey puffer-style jacket and blue Nike jogging bottoms.
An investigation into the incident is ongoing and detectives are urging anyone who saw what happened and has yet to speak to officers to get in touch.
Anyone with information or dashcam or CCTV footage which may assist should call Kent Police on 01843 222289 quoting reference 46/4635/24.
You can also call Crimestoppers anonymously on 0800 555111 or complete their online form.