On board were 43 students and a driver, according to the Northern Ireland Ambulance Service (NIAS).
It stated that the others were “in the process of being assessed, with a view to discharging at the scene,” excepting those who were sent to the hospital.
Just after 4 p.m., resources were dispatched to Ballyblack Road East, close to the community of Carrowdore, including an air ambulance and a specialised rescue team.
Twelve-year-old Dylan Lee, a student at Strangford College, told of what transpired on their way to Bangor.
The bus stalled after hitting a pole and descended this hill, the man claimed.
It began to tremble suddenly. When I opened my eyes after closing them, I was lying on the ground. When I woke up, I called my mother first thing.
Dylan only appears to have minor injuries, only a cut and a lump on his head.
The head of Translink, the public transport operator in Northern Ireland, stated that the corporation was assisting the police in their investigations.
Chris Conway verified that four students had been sent to the hospital and stated that no other vehicles were involved.