NIFRS responded to a road traffic collision involving two cars on the Churchtown Road in Garvagh, Kilrea just after 6pm on Wednesday 9th December.
Firefighters used hydraulic cutting gear to release a 15-year-old boy from one car. He was conveyed to hospital by ambulance.
Another male casualty, among four other casualties, was taken to hospital by ambulance before arrival of FRS.
Fire crews from Kilrea and Ballymena stations attended the incident.