Watch | Tiger Woods 'fortunate' to survive crash: Officer

Woods was alone in the SUV when it crashed into a raised median shortly before 7:15 a.m., crossed two oncoming lanes and rolled several times, authorities said at a news conference. No other cars were involved.

Los Angeles: Tiger Woods was seriously injured Tuesday when his SUV crashed into a median, rolled over and ended up on its side on a steep roadway in suburban Los Angeles known for wrecks, authorities said. The golf superstar had to be pulled out through the windshield, and his agent said he was undergoing leg surgery.

Woods was alone in the SUV when it crashed into a raised median shortly before 7:15 a.m., crossed two oncoming lanes and rolled several times, authorities said at a news conference. No other cars were involved. The 45-year-old was alert and able to communicate as firefighters pried open the front windshield to get him out.

Authorities said the airbags deployed and the inside of the car stayed basically intact.

They said there was no immediate evidence that Woods was impaired. Authorities said they checked for any odour of alcohol or other signs he was under the influence of a substance and did not find any. They did not say how fast he was driving.

The crash happened on a sweeping, downhill stretch of a two-lane road through upscale Los Angeles suburbs. Sheriff's Deputy Carlos Gonzalez, who was the first to arrive at the wreck, told reporters that he sometimes catches people topping 80 mph in the 45 mph zone and has seen fatal crashes there.

"I will say that it's very fortunate that Mr. Woods was able to come out of this alive," Gonzalez said.

Woods was in Los Angeles over the weekend as the tournament host of the Genesis Invitational at Riviera Country Club, where he presented the trophy on Sunday.