All 20 people on board were killed when a small vintage plane crashed in the Swiss Alps, police said on Sunday.
The Junker plane, which can carry up to 17 passengers and three crew, crashed into the Piz Segnas mountain in the east of the country on Saturday, at an altitude of around 2,500 metres. Most were from Switzerland but also a couple and their son from Austria.
The 20 Minutes newspaper quoted a witness who was on the mountainside at the time of the crash.
A plane crashed on the Piz Segnas mountain.
Donald Trump insults LeBron James' intelligence: 'I like Mike'
Trump "U bum" on Twitter, writing that since the team already said they weren't going, "therefore ain't no invite". But Trump's election has charged James's outlook, along with other athletes and coaches.
As this kind of collectors' aircraft is not equipped with "black box" flight data and voice recorders, investigators must rely on eyewitness accounts and analysis of debris.
The plane appears to have hit the ground near-vertically and at "relatively high speed", according to Daniel Knecht of the Swiss Transportation Safety Investigation Board. He said hot weather conditions did not contribute to the crash.
The plane was operated by Ju-Air, a Swiss company that offers tours with vintage former Swiss military aircraft.
JU-Air CEO Kurt Waldmeier told reporters that the plane had undergone maintenance inspection in July.
Prince Harry's Car Is for Sale and It's Sparking Royal Baby Rumors
Despite Royal warrants for Bentley, Aston Martin, and Jaguar Land Rover, Audi is something of a family favourite among the Royals.
Operator JU-Air said it was saddened by the news and it had set up a helpline for relatives.
Wreckage of JU-Air plane involved in crash in the Swiss Alps.
A general view of the accident site of a Junkers Ju-52 airplane of the local airline JU-AIR, in 2,450 meters (8,038 feet) above sea level near the mountain resort of Flims, Switzerland August 5, 2018. No survivors have been found.
Tiger Woods chases 9th win at Firestone Country Club
During a press conference, Woods said the course is one of his favorite places to play on the Professional Golf Association tour. On the par-4 18th hole, Woods added to his highlight reel by drilling a 50-foot uphill birdie putt to move to 3-under.