Three Pokuru School children and a parent were transported to Waikato Hospital this afternoon after the car they were in was involved in a two car crash outside the school.
A number of vehicles were returning children to the school after a week long camp near Lake Taupo.
The driver of the second car was uninjured.
An air ambulance was used to transported one young girl to hospital; she is described as being in a serious condition.
Pokuru Road near Te Awamutu, was closed for sometime to allow the Serious Crash Investigators to conduct a scene examination and determine the cause of the crash.
Victim Support attended at the scene to provide support to parents, pupils and teachers of the school.