The twin-engine Cessna 414A aircraft crashed into a house in the suburban Orange County's city of Yorba Linda, igniting a fire, at around 2 p.m. local time (22:00 GMT) on Sunday,
"[Total of] 1 structure involved, 2 people dead, 2 patients transported to local hospital," the statement, posted on Twitter, read.
The deceased people have not been identified yet. The number of people who were aboard the aircraft remains unclear.
WATCH: Shoreham Air Show Jet Crashes, Erupts in Fireball
A press conference, where updated information on the accident will be given, is scheduled to begin at 4.00 P.M. local time, according to the statement of the Orange County Fire Authority.