A CAR has crashed into an ambulance that was travelling through a red light on priority at a busy Adelaide intersection.

The force of the crash caused the ambulance to roll and flip on to its side at the intersection of Marion Rd and Sturt Rd, Sturt, about 11.30am on Tuesday.

SA Ambulance Service chief executive Jason Killens said the ambulance was responding to a priority 2 emergency with lights and sirens when the crash happened.

media_camera An ambulance rolled at the corner of Sturt Rd and Marion Rd after it was invovled in an accident. Picture: Greg Higgs

media_camera The ambulance was on its way to a job and was running through a red light at the time of the crash. Picture: Greg Higgs

He said two paramedics and a paramedic student were on board, travelling towards an incident involving an elderly patient.

“The vehicle was struck at the rear and flipped over as a result of that,” he said.

“There were no injuries as a result of that.

“As ambulances respond to emergency calls under lights and sirens, they can transgress or go through red lights if that’s appropriate in the circumstances.

An ambulance was travelling through a red light on priority when it was hit by a car at the Marion/Sturt road intersection @theTiser pic.twitter.com/tbh2luuzme — Meagan Dillon (@MeaganDillon7) May 2, 2017

Police moving a flipped ambulance off Sturt St, near the intersection of Marion Rd #newsADL @theTiser pic.twitter.com/x8tms3A7oO — Meagan Dillon (@MeaganDillon7) May 2, 2017

“There are rules around that, which will be part of the investigation that’s now under way.”

He said he was not critical of the paramedics in this incident.

“They do a great job on our behalf — day in, day out, in difficult circumstances to help people,” he said.

The paramedics and student were taken to Flinders Medical Centre for a check-up but were discharged a short time later.

media_camera No patients were on board at the time of the crash. Picture: Greg Higgs

media_camera The ambulance after it was righted. Picture: Greg Higgs

No patient was on board.

He said another ambulance responded to the elderly patient, who was taken to hospital.

Seacliff man Eduardo Penna, 45, was driving the car that hit the ambulance and said the ordeal had left him shocked.

“I was driving through the intersection and then the ambulance ran through the red light and I couldn’t stop,” he said. “I just hit the ambulance.

“It was all of a sudden and something I did not expect — it was very fast. Just all of a sudden, I saw the car and I couldn’t brake in time so we crashed.”

He was not injured in the crash and said he did not hear the sirens.