Plane may have broken apart ahead of deadly Florida jet crash, say investigators
The National Transportation Safety Board also believes weather could have been a factor in the crash, but warns it is too early to determine the cause.
The US National Transportation Safety Board (NTSB) says it will investigate whether parts of a jet that crashed in Florida broke off before it nose-dived and exploded, killing all nine people on board.
The Learjet 60, which was travelling from Austin, Texas to the Bahamas on Sunday, crashed on a street nine miles (14 km) from President Donald Trump's Mar-a-Lago resort.
A tech entrepreneur and his young family, as well as the 20-year-old copilot, were among those who died.
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".