Police are aware of a video which is being shared on social media of an assault in Crawley.
Officers were called to Southgate Skate Park, Southgate Avenue at around 7pm on April 17 following a report of an assault on a 14-year-old girl.
She was taken to hospital and has since been discharged.
A thorough investigation was launched. Two 15-year-old girls from Crawley and a 13-year-old girl from Crawley were arrested on suspicion of assault. They have been released on bail pending further enquiries.
Witnesses or anyone with mobile phone footage or information is urged to contact Sussex Police online or call 101 quoting serial 1137 of 17/04.
Anyone who has video footage of the incident is asked to not share it on social media, and to share it with police.