Xavier Gourmelon says Diana was conscious and had her eyes open as he pulled her from the wreckage, only to suffer a cardiac arrest as she was placed on the ambulance stretcher.

“She was moving very slightly and I could see she was alive,” he said.

“I held her hand and told her to be calm and keep still, I said I was there to help and reassured her. She said, ‘My God, what’s happened?’”

“I could see she had a slight injury to her right shoulder but, other than that, there was nothing significant. There was no blood on her at all.”

The first responder gave the mother-of-two CPR and thought that despite her injuries she would survive.

“I know now that there were serious internal injuries, but the whole episode is still very much in my mind. And the memory of that night will stay with me forever.”

“I can still picture the whole scene. It’s something I’ll never forget and that I always think about at this time of year.”

This article originally appeared on InStyle Australia.