Reported by BBC World
A 20-year-old copilot was among nine people killed when a small jet crashed and exploded in Florida on Sunday, according to US media.
Nathalia Filgueiras, who earned her pilot's licence when she was 17, is reported to have been one of two crew members aboard the Learjet 60 from Austin, Texas, to the Bahamas when it crashed near West Palm Beach.
The National Transportation Safety Board (NTSB) said it would investigate to what extent ice and turbulence may have contributed to the crash, and whether human error played a role.
More from the original report
One man on the ground sustained a leg injury when the aircraft nosedived on to a street near Cresthaven, nine miles (14 km) from President Donald Trump's Mar-a-Lago resort.
Images from the scene show a large fiery crater in the middle of a residential suburban street.
The debris was scattered across sports fields, businesses and homes in the area, officials told a news conference on Monday, possible evidence that the plane broke up before it hit the ground.
Officials describe how Learjet flight unfolded before deadly crash
The NTSB confirmed that after the jet took off from Austin, the crew transmitted to air traffic control that they were encountering ice and moderate turbulence.
"We are picking up precipitation, requesting to climb to 37,000 feet if able," the crew said.
NTSB member Tom Chapman said that less than 30 seconds later, the plane began to descend and the crew issued a mayday call.
The transmission then became "unintelligible", he said, adding that: "Sadly, all aboard were lost."
Flight analysis indicates the jet was plummeting hundreds of feet per second before crashing.
In air traffic control audio, a crew member can be heard declaring an emergency, shouting "we are in an overspeed condition descending 20,000ft per minute", before saying, "we are going to crash into the ground".
About 35 seconds after the initial mayday announcement, the last remark from the cockpit was "we're out of time".
Three years before crash, young copilot spoke of earning pilot licence
Filgueiras's mother, Camila Corteleti, confirmed to US media that her daughter had died in the…