Santa Monica police Lt. Alex Padilla distributes a booking mug to the media after actress Lindsay Lohan was released today. Lohan was arrested on suspicion of drunken driving and possession of cocaine early today, authorities said. NICK UT | Associated Press

Less than two weeks out of rehab, with another drunken driving case pending, Lohan had a blood-alcohol level of between .12 and .13 percent when police found her about 1:30 a.m., Sgt. Shane Talbot said.

"Addiction is a terrible and vicious disease," Lohan attorney Blair Berk said in a statement Tuesday.

"Since Lindsay transitioned to outpatient care, she has been monitored on a SCRAM bracelet and tested daily in order to support her sobriety.

"Throughout this period, I have received timely and accurate reports from the testing companies. Unfortunately, late yesterday I was informed that Lindsay had relapsed. The bracelet has now been removed. She is safe, out of custody and presently receiving medical care," she said.

Authorities received a 911 call early Tuesday from the mother of Lohan's former personal assistant, said Officer Alex Padilla. The assistant had just quit hours before, he said.

"The mother was afraid," Padilla said. "She wasn't quite sure what was going on so she called the police saying she wanted to make sure everything was going to be OK."

The woman apparently didn't realize it was Lohan who was following her, Padilla said.

Lohan was driving a Denali sport utility vehicle as she tailed the woman's black Cadillac Escalade into the parking lot of Santa Monica's Civic Auditorium, about a block away from the Police Department. Officers found Lohan and the woman in a "heated debate," Padilla said. Each woman had two passengers.

The 21-year-old movie star was booked for investigation of driving under the influence and driving on a suspended license, both misdemeanors, and for investigation of cocaine possession and transport of a narcotic, both felonies, Talbot said.

During a search, police found cocaine in one of Lohan's pants pockets, Talbot said.

Several hours later, Lohan was released on $25,000 bail.

A call to Lohan's publicist, Leslie Sloan Zelnik, was not immediately returned.

Padilla said he didn't know why Lohan was trying to catch the woman, whom he didn't name.

Last week, Lohan turned herself in to Beverly Hills police to face allegations of driving under the influence in connection with a Memorial Day weekend hit-and-run crash.

Lohan lost control of her 2005 Mercedes SL-65 convertible and crashed into a curb and shrubs on Sunset Boulevard, police said. Lohan, who was about a month shy of the legal drinking age at the time of the crash, had a blood-alcohol level above the limit, but authorities wouldn't disclose how high it was. She also faces a misdemeanor charge of hit and run in that case. Lohan turned 21 on July 2.

A court date was scheduled in that case for Aug. 24.

Lohan left Promises Malibu Alcohol and Drug Rehab Treatment Facility on July 13, after a stay of more than six weeks. When she left, Zelnik said Lohan would voluntarily wear an alcohol-monitoring bracelet.

Padilla said he wasn't sure if Lohan was wearing it when she was stopped early Tuesday.

In January, Lohan also had checked into rehab for substance abuse treatment.

———