Three people injured in an early morning crash in Ngakuru have been transferred to Waikato Hospital.
St John said two people suffered serious injuries in the crash, while the third was in a moderate condition when taken to Rotorua Hospital.
They have since been assessed and transferred.
Emergency services were called to Whirinaki Valley Rd just after 2am after reports of a car crashing into a bridge.
Northern fire communications shift manager Colin Underwood said one of the trio was extricated from the car and firefighters also stayed on to help paramedics.
A helicopter was also sent to the area from Taupō, but it is understood St John took all three people to hospital via ambulance.
A tow truck removed the car and cleared the road just before 4am.
The crash site close to where eight people were killed in one of the country's most horrific crashes - on State Highway 1 near Ohakuri Rd, in Ātiamuri.
A 9-year-old boy was the sole survivor.
Emergency crews were also called to another crash on State Highway 2 near Tūtira, north of Napier, about 4am.
A central fire communications spokesman said no one was trapped and there had been no major injuries.