The aircraft was heading to John Wayne Airport, but it was unclear where it was coming from, according to spokeswoman Deanne Thompson.
Five people have died after a light plane crashed into a carpark in Southern California.
The plane crashed just a block away from South Coast Plaza, a large mall. "You just felt the ground move", she told the New York Times.
The Orange County Fire Authority, who responded on the scene, said they were lucky the crash wasn't as deadly as it could have been. He said it appeared that the plane "went down pretty abruptly", and added that while the plane leaked jet fuel, it didn't ignite. California is no stranger to planes crashing out of the blue.
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The Shepherds have two children, according to Lara's profile on the real estate site. He was a great cook, and she knew about art, said neighbor Kate Montgomery.
All of the passengers on the plane were employees of Pacific Union International, a real estate company out of Danville, California. "Life is precious and we are focused on comforting the loved ones affected by this devastating event".
The Federal Aviation Administration and the National Transportation Safety Board were investigating the crash.
The plane was registered to a San Francisco company and had flown from the East bay suburb of Concord, according to FAA records.
Associated Press writer Christopher Weber contributed from Los Angeles.