USHUAIA, Argentina A helicopter from the megayacht Octopus, owned by Microsoft co-founder Paul Allen, made an emergency landing on water in Argentina's far south on Monday, officials said, injuring one co-pilot.
Paul Allen's spokesman said neither billionaire Allen nor co-founder Bill Gates were on board. He said a co-pilot was injured and were being taken to hospital.
It was not clear what caused the helicopter to come down in frigid waters of the bay off the southern city of Ushuaia. A photograph showed the helicopter bobbing in the water, its rotor blades twisted.
"The helicopter hit the water hard," said naval official Daniel Vera. "The helicopter is from a yacht called Octopus. We are investigating what happened."
Local media said the yacht was planning a trip to Antarctica.
Allen, who founded Microsoft with Gates in 1975, is one of the world's wealthiest people and a well-known philanthropist.