A Fire and Emergency New Zealand (Fenz) spokesman said a crew from Wakari Volunteer Fire Brigade were on their way to assist with mopping up after a fire in Coal Gully Rd near Milton.
The crew came across a digger which had rolled at the side of State Highway 1 between Milton and Waihola about 11.30am yesterday.
No extraction was needed and crews assisted to check the occupants for injuries.
A St John spokesman said they were notified of the incident by Fenz and sent an ambulance and a rapid response vehicle to the incident.
One person was taken to Dunedin Hospital with moderate injuries, the spokesman said.