She then drove back and could see it was a helicopter with people at the scene who appeared to be helping.
A resident says he heard the fatal crash of a helicopter then saw a ball of fire in a road when he ran from his house in suburban Honolulu.
Leleo Knappenberger told Hawaii News Now that his mother heard the helicopter flying over the house, making a strange noise.
He said the aircraft was "all smashed to pieces."
A federal agency says a helicopter was a four-seat Robinson R44.
Federal Aviation Administration spokesman Ian Gregor says the agency believes three people were on board the aircraft. He says the circumstances of the morning crash remained unknown.
The FAA and the National Transportation Safety Board will investigate the crash.
-AP