BBC News:- US investigators are working to determine the causes of the helicopter crash that killed basketball star Kobe Bryant in California on Sunday.
All nine people on board the helicopter died, including Bryant’s 13-year-old daughter, Gianna.
Investigators are expected to focus on the weather conditions, which were foggy, and on any mechanical failures that may have occurred.
Bryant was considered to be one of the greatest players in the game’s history.
He was a five-time NBA champion for his only team, the Los Angeles Lakers, and a double Olympic gold medallist. He retired in April 2016.
around the world while fans congregate at a makeshift memorial for the player in front of the Lakers’ Staples Center in Los Angeles.
The NBA cancelled a game between the Lakers and the Clippers scheduled for the stadium on Tuesday.
What will investigators focus on?
Investigators from the Federal Aviation Administration (FAA) and the National Transportation Safety Board (NTSB) are gathering in the area to launch separate crash investigations.
The federal agency has a team of about 20 people in LA and will work with the FAA, the helicopters’ manufacturer and the company that made its engine, the Washington Post reports.
Investigators began searching through the wreckage on Monday. The FBI is helping the NTSB’s staff document the scene, which is standard procedure.
The aircraft – a Sikorsky S-76B – went down into a hillside outside the city of Calabasas, west of Los Angeles, on Sunday at 09:45 local time (17:45 GMT).
Conditions were foggy when the flight took off, and local police had grounded their helicopters due to the poor weather.
The pilot asked air traffic controllers for a special clearance, known as Special Visual Flight Rules, to fly in less than optimal weather, said NTSB board member Jennifer Homendy, who went to the crash scene to collect evidence.
The helicopter, she added, circled in the air for 12 minutes before being given the clearance. The pilot then asked controllers for “flight following”, an assistance given to helicopters to avoid collisions, but was told the craft was too low to be picked up by radar.
Minutes later, the pilot said he was “climbing to avoid a cloud layer”, she added. The helicopter climbed and began a left descending turn, according to radar data, before communication was lost “consistent with the accident location”.