Michael Schumacher's skis 'not cause of accident'

French police have confirmed that the skis used by Formula 1 legend Michael Schumacher did not cause the accident that resulted in the sportsman suffering a serious head injury.

The 45-year-old is currently in a critical but stable condition at the University Hospital in Grenoble after hitting his head on a rock while skiing off-piste at the resort of Meribel in the French Alps.

French state prosecutor Patrick Quincy has confirmed that investigators have attended the site of the accident, as well as analysing a video filmed from a camera in Schumacher's helmet.

During a press conference, investigators denied that he had faulty skis, but a scratch under one of his skis indicated that he did hit a rock.

The accident occurred on December 29.