The Royal Newfoundland Constabulary in Corner Brook has charged a 17-year-old boy with assaulting two younger boys.
Officers were called to the Dunfield Park playground at 9:45 on Tuesday night, where two boys, 12 and 14, had been hurt.
Police said although the boys sustained injuries, they did not require medical treatment.
The oldest boy was turned over to his father after the incident and will appear in court at a later date. He was also charged with mischief.
The three boys were known to each other.