The Royal Newfoundland Constabulary in Corner Brook is investigating two separate cases of assault.
On Saturday morning a patrol officer intervened in the Murphy Square area, where a 19-year-old woman assaulted a 17-year-old female on the parking lot.
The accused was arrested for common assault and was released to appear in provincial court at a later date.
Police said the two were known to each other, however no injuries were sustained.
Meanwhile, a 15-year-old girl was arrested for assaulting a 13-year-old girl.
Both are residents of Corner Brook.
The accused teen was released to the custody of her mother to appear in youth court at a later date.
The victim sustained a minor injury during the assault.