Police were called to Penglais School after the incident, which happened shortly after the school day finished
A child has been airlifted to hospital with serious injuries after being hit by a car.
The incident happened outside Penglais School, Aberystwyth, Ceredigion, on Monday shortly after the school day finished at about 15:20 GMT.
Dyfed-Powys Police has reopened the road after closing it while the secondary school pupil was flown to hospital.
The force has urged the public to come forward with any information.