Osment, who was nominated for an Academy Award for his role as a boy who could see dead people in "The Sixth Sense," was driving a 1995 Saturn about 1 a.m. when the car collided with a brick pillar and flipped, said Los Angeles County sheriff's Lt. Greg Sisneros.
The 18-year-old actor was awake and talking following the crash, Sisneros said. He had been alone in the car and was taken to Huntington Hospital in nearby Pasadena.
Sisneros had no information on his condition, and an emergency-room receptionist said no one under that name was at the hospital.
Osment is set to appear in the upcoming "Home of the Giants." In the film, he plays a high school journalist covering a basketball team as it heads toward the state championship.
La Canada Flintridge, a suburb of Los Angeles, is about 14 miles northeast of downtown.
I love Haley! Hope he's OK.