A teenage student has pleaded not guilty to the manslaughter of a 13-year-old boy, who died after a playground incident at school.
Francis McDermott, aged 19, has denied killing schoolboy Oisin McGrath. In February 2015, McGrath died four days after an incident at St Michael's College, Enniskillen, Northern Ireland.
The incident happened during a lunch break and Oisin was immediately taken to hospital and put on a life support machine.
McDermott's lawyer told the court it was "an unusual set of circumstances that led to the collapse and death of Oisin McGrath."
The court heard that a number of investigations were carried out at the school and several pupils were interviewed.
McDermott, who was a sixth former at the same school as Oisin at the time of the incident, only spoke to confirm his name and address and to enter his not guilty plea.
A prosecution barrister said the trial will last three weeks due to the number of young people involved and medical issues that will be raised. McDermott has now been released on bail.
Oisin's parents have since set up a foundation in his memory to raise awareness of organ donation, brain injury research and local youth sports development.