A LIVE broadcast of a popular game show was halted after a contestant was severely injured while trying to jump over a moving car driven by his father.
The accident occurred on Saturday night just before Canadian teen idol Justin Bieber was to appear on the show, prompting him to say on his Twitter account: 'Please pray for Samuel Koch and his family as we wait and hope for his health and safety.'
Koch's stunt may have gone terribly wrong because the special shoes he was wearing for the jump, featuring a suspension system, malfunctioned.
German broadcaster ZDF said the accident by the 23-year-old prompted it to cancel the live broadcast of the Wetten Dass (Bet It), which had an audience of about 10 million people, according to German media.
Koch suffered multiple back injuries and fractures, underwent surgery on Sunday, and his condition was initially life threatening, the German news agency DPAD quoted Duesseldorf hospital's Dr Wolfgang Raab as saying.
But it remained unclear if or when Koch would fully recover since 'he is in an extremely critical stage', Dr Raab told journalists.
Bieber, a 16-year-old singer, added that he felt sorry for not being able to perform in Germany, but 'some things are more important than putting on a show. We will be back I promise'.
Wetten dass has been on TV for nearly 30 years and is one of Germany's most successful shows.