Prosecutors have launched an investigation in Germany after media organisations were reportedly offered what is claimed to be the first photograph of Michael Schumacher since his life-changing accident.

The 47-year-old Formula 1 legend sustained severe head injuries in a skiing accident in France on December 29, 2013 and has been cared for at his home in Switzerland since September 2014.

Prosecutors in Offenburg are investigating the incident as an alleged violation of Schumacher's privacy after the picture was reportedly taken and smuggled out of his home.

Schumacher's manager Sabine Kehm said last week: "Michael's health is not a public issue, and so we will continue to make no comment in that regard. This is also because we have to protect his intimate sphere.

"Legally seen and in the longer term, every statement related to his health would diminish the extent of his intimate sphere. We are aware that this may be difficult for some people to understand but we do this with full commitment to Michael's guidelines and can only thank people for their understanding.

"Michael has always been very protective of his privacy, even during the most successful times of his career. He has always made sure there is a clear and distinct line between his public persona and his private one."

Schumacher is F1's most successful driver, with 91 wins and seven drivers' world titles.