One person has been freed from a van that rolled down a bank in Ohaaki, near Reporoa.
A St John spokeswoman said the person was initially trapped in the van.
Nine other people made it out of the van and had minor injuries.
A police spokeswoman said police were called to the scene on State Highway 5 near Dan Rd just after 2.30pm.
She said a person was taken to Rotorua Hospital with moderate injuries after they were freed from the van.