A 15-year-old girl is in a stable condition after being stabbed in the neck in Lurgan, County Armagh.
Police said the incident happened in the Dean's Walk area of the town before 21:00 BST on Friday.
A 14-year-old girl has been charged with grievous bodily harm. She is due to appear at Lisburn court on Monday.
A spokesman for the Northern Ireland Ambulance Service said the teenager received treatment at the scene before being taken to Craigavon Area Hospital.
She was later transferred to the Royal Victoria Hospital in Belfast.
Officers have appealed for witnesses to come forward.
A spokesman for the Belfast Trust said the teenager's condition was now "stable".