Woods was driving almost 90 mph when he crashed SUV near LA

"The primary causal factor for this traffic collision was driving at a speed unsafe for the road conditions and the inability to negotiate the curve of the roadway," the sheriff told a news conference.

Woods was driving 84 to 87 mph (135 to 140 kph) in an area that had a speed limit of 45 mph (72 kph), Villanueva said.

The stretch of road is known for wrecks and drivers who frequently hit high speeds. Due to the steepness of the roadway, a runaway truck escape lane is available just beyond where Woods crashed.

Sheriff's Capt. James Powers, who oversees the sheriff's station closest to the crash site, said there was no evidence that the golfer tried to brake and that investigators believe Woods inadvertently stepped on the accelerator instead of the brake pedal. He was wearing a seat belt at the time, and the SUV's airbags deployed.

Sheriff's officials said Woods told deputies that he had not taken medication or consumed alcohol before the crash.

"Those questions were asked and answered," Powers said.

Detectives did not seek search warrants for blood samples, which could have been screened for drugs or alcohol, or his cellphone. Authorities said there was no evidence of impairment or of distracted driving, so they did not have probable cause to get warrants. Investigators did search the SUV's data recorder, known as a black box, which revealed the vehicle's speed.

No traffic citations were issued. The sheriff said Woods gave permission for authorities to reveal details about the crash.

On Twitter, Woods thanked the people who called 911, as well as the first responders who pulled him out of the wreck and transported him to the hospital.

"I will continue to focus on my recovery and family, and thank everyone for the overwhelming support and encouragement I've received throughout this very difficult time," Woods wrote in a statement posted after the news conference.

Documents show that Woods told deputies he did not know how the crash occurred and did not remember driving. At the time of the wreck, Woods was recovering from a fifth back surgery, which took place two months earlier.

Woods, who is originally from the Los Angeles area, had been back home to host his PGA tournament, the Genesis Invitational at Riviera Country Club, when the crash happened.

He was driving an SUV loaned to him by the tournament when he struck a raised median in Rolling Hills Estates, just outside Los Angeles. The SUV crossed through two oncoming lanes and uprooted a tree, striking it at 75 mph (120 kph).

The athlete is in Florida recovering from multiple surgeries, including a lengthy procedure for shattered tibia and fibula bones in his lower right leg in multiple locations. Those were stabilized with a rod in his tibia. Additional injuries to the bones in his foot and ankle required screws and pins.

Woods, 45, has never gone an entire year without playing, dating back to his first PGA Tour event as a 16-year-old in high school. He had hoped to play this year in the Masters tournament, which begins Thursday.

Rory McIlroy, a four-time major golf champion who lives near Woods in Florida, said he visited him on March 21.

"Spent a couple hours with him, which was nice. It was good to see him," McIlroy said Tuesday from the Masters. "It was good to see him in decent spirits. When you hear of these things and you look at the car and you see the crash, you think he's going to be in a hospital bed for six months. But he was actually doing better than that."

In the weeks after the crash, the sheriff called it "purely an accident" and said there was no evidence of impairment. Villanueva faced criticism for labeling the crash an accident before the investigation had concluded and pushed back Wednesday against allegations of special treatment for the golf star.

"That is absolutely false," he said.

Last week, Villanueva said investigators had determined the cause of the crash but would not reveal it. He claimed he needed permission from Woods to do so. The sheriff said Wednesday that Woods — who has a yacht named Privacy — had approved the release of the investigation's findings.

Villanueva also declined to release footage from deputies' body cameras, citing the athlete's privacy.

This is the third time Woods has been involved in a vehicle investigation.

The most notorious example was when his SUV ran over a fire hydrant and hit a tree early on the morning after Thanksgiving in 2009. That crash was the start of shocking revelations that he had been cheating on his wife with multiple women. He was cited for careless driving and fined $164. Woods also lost major corporate sponsorships, went to a rehabilitation clinic in Mississippi and did not return to golf for five months.

In May 2017, Florida police found him asleep behind the wheel of a car parked awkwardly on the side of the road. He was arrested on a DUI charge and said later he had an unexpected reaction to prescription medicine for his back pain. Woods pleaded guilty to reckless driving and checked into a clinic to get help with prescription medication and a sleep disorder.

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Associated Press Golf Writer Doug Ferguson in Augusta, Georgia, contributed to this report.