 On 17 February 2012, Prince Friso was buried under an avalanche in Lech, Austria, while skiing off piste.He was taken to a hospital in Innsbruck, where he was in a critical but stable condition.According to his doctor, Wolfgang Koller, even though he was trapped for a relatively short time and hopes had originally been higher, subsequent neurological tests showed that after fifty minutes of cardiopulmonary resuscitation in moderate hypothermia, he suffered massive brain damage due to oxygen shortage.