Paris Match also reported that Schumacher's helmet had "exploded" into three pieces upon impact with a rock on the ski slope.
In other news, a new video has come to light showing the moment when Schumacher was airlifted by helicopter from the French Alps. (Fair warning, the video shown below is small and quite grainy, but it is not graphic).
Meanwhile, family and colleagues are wishing Schumacher a recovery as quick as his on-track reputation. Martin Brundle, racing pundit and former F1 driver tweeted: "Come on Michael, give us one of those race stints at pure qualifying pace to win through, like you used to. You can do it."
See the video of Schumacher's airlift and read more social media well-wishes below.
Come on Michael, give us one of those race stints at pure qualifying pace to win through, like you used to. You can do it.- Martin Brundle (@MBrundleF1) December 29, 2013
Sadly & hopefully I follow news on Michael Schumacher. Lets pray for him & also for the strength & expertise of doctors guiding his recovery- Mario Andretti (@MarioAndretti) December 30, 2013
Wishing a full and speedy recovery for Michael Schumacher. Motor racing already had too many losses in 2013. #GetWellSoonMichael- Bruno Senna (@BSenna) December 30, 2013
Hoping that Michael Schumacher gets better. Thats a freak accident that u hope nobody goes thru. we are all thinking about him.- Juan Pablo Montoya (@jpmontoya) December 30, 2013
Hope Michael Schumacher recovers fully from his accident, he is a fighter and super fit so should help. Sending good wishes to his family.- David Brabham (@brabsracer) December 30, 2013
Very shocked to hear about Michael Schumacher our thoughts are with Michael, his wife Corinna and their two children at this terrible time.- Nigel Mansell CBE (@Mansell_Nigel) December 30, 2013
Thoughts & prayers going out to Michael Schumacher. Hoping he can pull through this.- Ralph Gilles (@RalphGilles) December 30, 2013
Thoughts and prayers go out to Michael Schumacher to pull through his injury from skiing.- Michael Andretti (@michaelandretti) December 30, 2013
Thoughts are with Michael Schumacher and his family. Hard for me to accept as I always believe that he was invincible.- Justin Wilson (@justin_wilson) December 29, 2013