There's a 'current trend' of youngsters being involved in fights, them being recorded and then posted on social media.
That's according to Police, who took to social media to issue the message.
Officers say it's resulting in young people being assaulted and then bullied physically or mentally.
The Constabulary says it won't tolerate such behaviour and will deal with those responsible robustly.
PC Paddy Moore says the Police's main concern is keeping young people safe: