Durham, N.C. — An ambulance driver responding to a call was speeding when her vehicle ran off N.C. Highway 751 and overturned Saturday morning, injuring herself and an emergency medical technician, state troopers said.

Troopers said that Amanda Vanschaack, 21, of Pittsboro, was driving the ambulance belonging to Johnston Ambulance Service between 65 and 70 mph on N.C. 751 South, near the Durham-Orange county line. The speed limit there is 55 mph.

Vanschaack took a curve too fast, troopers said, and the ambulance ran off the right side of the road, struck a ditch and overturned several times.

Two off-duty Rockingham County EMS personnel passed by the wreck and got Vanschaack and EMT Henry Daniel out of the ambulance, officials said. The EMS workers treated and stabilized Vanschaack and Daniel using equipment from the wrecked ambulance.

Vanschaack was being treated at Duke Medical Center Saturday afternoon. Daniel, 26, of Roxboro, has been treated and released from Duke.

Troopers said they will not file charges because the ambulance crew was responding to a call when they wrecked.

There was not a patient in the ambulance, and Vanschaack and Daniel were both wearing seat belts.

A representative for Johnston Ambulance Service said they have no comment at this time.