Two people have been critically injured following a crash near Matamata.
The Trustpower TECT Rescue Helicopter was sent to the scene of the accident on Morgan Road.
A 19-year-old man was flown to Waikato Hospital for assessment and treatment, says a spokesperson for the rescue helicopter.
The other injured person was also flown to Waikato Hospital by the Hamilton-based Waikato Westpac Rescue Helicopter.
Earlier that evening the Trustpower TECT Rescue Helicopter was also tasked with transporting a 37-year-old critical patient to Waikato Hospital.
Both of these flights were conducted used the use of night vision goggles, says the spokesperson.