NSW Police say they will conduct a review into an incident that left a 14-year-old Indigenous boy hospitalised after an arrest in the state's north at the weekend.
The teenager and a 13-year-old boy were arrested by officers from the Richmond Police District in the Coraki area, south of Lismore, as part of an ongoing investigation into several property offences.
Footage shortly after the arrest has been posted to social media showing both boys sitting on the ground back-to-back in handcuffs with the 14-year-old's face covered in blood.
In one of the videos, he appears to be going in and out of consciousness.
Family members allege the teenager suffered head injuries during the police arrest.
Police said they were conducting patrols on Sunday as part of strike force investigations when they approached a group of four people allegedly armed with housebreaking implements.
A foot pursuit began and two teenage boys were arrested a short distance away.
The 14-year-old boy was taken to Lismore Base Hospital for a laceration to his head.
Police confirmed he was later released and taken to Lismore Police Station, where he was charged with trespass and suspicion of possessing stolen goods.
He is due back in court next month.
The 13-year-old boy was also taken to Lismore Police Station and charged with entering inclosed land without a lawful excuse, and having goods in his personal custody suspected of being stolen.
Police said local officers would now conduct a review into the arrest.
The teenager's family have sought legal help while the review is being conducted.