Cary, N.C. — A major intersection in Cary reopened Wednesday evening, more than 14 hours after a wreck involving an ambulance and a car downed a power line that temporarily left thousands of people with electricity.

A Cary Area EMS ambulance was traveling northbound on Kildaire Farm Road at about 3:15 a.m. when an Infiniti ran a red light at Cary Parkway and collided with the ambulance.

The ambulance then slammed into the utility pole and sheared it off, police said.

That knocked out power to more than 4,200 customers, Progress Energy officials said. Service to all but 50 customers was restored by noon. The remaining received power by 4 p.m.

Power lines and traffic lights in the Cary Parkway and Kildaire Farm Road intersection hung about 5 feet above the pavement Wednesday morning, and police closed the intersection to traffic for most of the day while crews disconnected electric, phone and cable lines from the damaged utility pole and reconnected to a new pole.

A passenger in the Infiniti, a female paramedic and a female volunteer intermediate emergency medical technician were taken to WakeMed Raleigh Hospital for treatment of non-life-threatening injuries. The two women in the ambulance were treated and released.

There was no word on the condition of the Infiniti passenger.

Driving while impaired and running a red light charges are pending against the driver of the Infiniti, who has been identified as David Robert Boone, 21, of Wake Forest, police said.

The ambulance had dropped off a patient at WakeMed Cary Hospital and was returning to its base at the time of the wreck, authorities said.