A family was this afternoon flown to hospital after a multi-car crash in Mangatarata, Waikato.
The Auckland Rescue Helicopter Trust said seven people from three vehicles were attended to by emergency services after the collision shortly before 4.30pm.
A father and his son and daughter were flown to hospital with injuries.
The boy was in a serious condition with suspected broken bones while the father and daughter had minor injuries including whiplash and seatbelt abrasions.
All were wearing seatbelts.
The trust's Whitianga-based crew flew the trio to Waikato Hospital.
St John tweeted that it had attended the incident and three people were treated. Four people were uninjured.