Investigators were still trying to determine what caused Woods, 45, to lose control of the sport utility vehicle he was driving on Tuesday morning.

Woods was negotiating a curved, downhill stretch of highway that authorities said was notoriously dangerous when the SUV he was driving veered across the opposite lanes, collided with a road sign and rolled several times before coming to rest.

"We don't contemplate any charges whatsoever in this crash," Los Angeles County Sheriff Alex Villanueva told a news briefing.

"This remains an accident and an accident is not a crime. They do happen, unfortunately."

Woods, celebrated as one of golf's all-time greats, was extricated from the crumpled SUV through the shattered windshield by rescuers and rushed to nearby Harbor-UCLA Medical Center.

"We don't contemplate any charges whatsoever in this crash. This remains an accident and an accident is not a crime. They do happen, unfortunately." – Los Angeles County Sheriff Alex Villanueva

Woods hosted the PGA Tour's Genesis Invitational at the Riviera Country Club over the weekend but did not play due to his back injuries.

The wrecked SUV bore the Genesis Invitational name on its doors.

He was seen at the Rolling Hills Country Club on Monday with actress Jada Pinkett Smith, retired basketball star Dwyane Wade and comedian David Spade.

Woods had reportedly been shooting a TV show segment in which he was giving on-course instruction to the three celebrities and had been scheduled to resume filming on Tuesday.

He was the sole occupant of the vehicle when it crashed near the suburban communities of Rolling Hills Estates and Rancho Palos Verdes, the sheriff's department said.

Sheriff's deputies responding to the wreck found no indication that Woods had been under the influence of alcohol or drugs and said he was "lucid" after the accident.

Weather was not considered a factor.