Petr Kellner, purported to be the wealthiest person in the Czech Republic according to the Forbes list of billionaires, has died in a helicopter crash.
He was one of five who died in the crash on the heli-skiing trip near the Knik Glacier in Alaska. One person did survive and is described as being in a serious but stable condition.
Mr Kellner was believed to be the Czech Republic's richest man, with Forbes estimating his net worth at $17.5 billion. Another Czech skier, Benjamin Larochaix, as well as guides Gregory Harms and Sean McMannany and pilot Zach Russel were also killed.
Mr Kellner's death follows the assumed death of German-American-Russian billionaire Karl-Erivan Haub, the heir to the Tengelmann supermarket chain, who went missing while skiing off-piste in Zermatt nearly three years ago in April 2018. His body has never been found and he is currently officially assumed dead.