A 13-year-old girl has died following a crash near Matamata which left five children seriously injured.

Police have confirmed this morning that the girl involved in the crash on December 27, died in Waikato Hospital on yesterday.

'Police extend their sympathies to her family and loved ones.

'The serious one-vehicle crash resulted in the children, aged 10 to 13, receiving serious injuries.”

The investigation into the crash is ongoing.

Police were alerted to the crash involving a Nissan Tiida on Morrinsville-Walton Road, Matamata at about 11.55pm on Monday, December 27.

Upon arrival police found the car in a ditch, with the children outside of the vehicle.

All five were taken to Waikato Hospital - four by ambulance and one by helicopter.

'At this early stage our focus is on understanding what led to this very serious crash,” says Waikato District Commander Superintendent Bruce Bird.

'While we understand there may be speculation about what occurred, it's important Police have the opportunity to investigate the circumstances, and the families impacted are given the space to support their children.”

Police would like to thank the members of the public who went to the children's aid immediately after the crash.

'I also want to acknowledge the emergency service staff who responded,” says Superintendent Bird.

'They acted quickly and professionally in difficult conditions to ensure these young people got the medical attention they urgently needed.”