Jupiter: Tiger Woods was asleep at the wheel of a Mercedes-Benz stopped on a Florida road and did not know where he was, said a police report released on Tuesday, a day after the former world No. 1 golfer was arrested on a charge of driving under the influence. Woods, 41, blamed the incident on medications.

Woods had "extremely slow and slurred speech" after being awakened by a Jupiter police officer, who found the car the golfer was driving stopped in the right lane of the roadway and still running with the right blinker light flashing, the report said.

Woods was heading south, away from his Jupiter Island home, before his arrest on Monday, according to the report. It said Woods was cooperative, but had a hard time walking and keeping his eyes open.

The police report said that during his interaction with the arresting officer, Woods "changed his story of where he was going and where he was coming from." At one point he indicated he was returning from a golf trip in Los Angeles, the report said.

The athlete, currently sidelined from competition after his fourth back surgery in April, said on Monday that an unexpected reaction to legal drugs led to his arrest on the DUI charge.

He also was cited for improper parking. Two breath tests showed Woods's blood alcohol content to be zero, according to the report, which added he performed several field sobriety tests incorrectly.

"I want the public to know that alcohol was not involved," Woods said in a statement. "What happened was an unexpected reaction to prescribed medications. I didn't realize the mix of medications had affected me so strongly."

Woods apologised, saying: "I will do everything in my power to ensure this never happens again."

Woods, who is second on the all-time list with 14 Major titles, was released from jail on his own recognizance and is due in court on July 5, records show.

The incident occurred less than a week after Woods expressed optimism about his future following back surgery, saying on his website that he experienced "instant relief" and had not "felt this good in years."

Woods has previously made headlines away from the golf course. His private life unravelled in late 2009 over allegations about affairs with several women and ultimately led to the end of his marriage.

Those allegations followed a bizarre early morning car accident outside his Florida home that rapidly ballooned into a fully-fledged sex scandal which turned his previously unblemished life and career upside down.

The scandal ultimately cost Woods a number of lucrative endorsement deals, while other sponsors shifted away from using him in marketing but did not end their contracts with him.

A 79-time winner on the PGA Tour who was world No.1 for a record 683 weeks, Woods lost form in recent years due to injuries and the mastering of a new swing while his ranking has plummeted to 876 after his long spell on the sidelines.

He has competed in only 19 events on the PGA Tour since the end of 2013, recording just one top-10 during that period along with seven missed cuts and three withdrawals. (Reuters)