Police want to speak to two people after a teenage girl was raped in a park.
It happened in Woodlands Park, Gravesend, between 6pm and 8pm on Wednesday, October 23 last year, close to the play park.
The victim reported the incident on June 12 and a teenage boy who was arrested on June 30 has since been released while inquiries continue.
Investigating officers now want to speak to two people who were in the park on the night and are believed to have disturbed the suspect.
PC Marissa Freeman said: "I appreciate a long time has passed since October but I would urge people to try to think back to that date in case they were likely to have been in the park at the time.
"We believe two people may have witnessed the assault, without knowing the significance of what they had seen, and we would like to hear from anyone who thinks they can help with this investigation."
Anyone with information should call Kent Police on 01474 366149 quoting reference 46/99108/20.
You can also call the independent charity Crimestoppers anonymously on 0800 555111 or complete the online form at www.crimestoppers-uk.org