Lindsay Lohan Released: Enters UCLA Medical Center Rehab (PHOTOS, VIDEO)

lindsay lohan ucla medical center

Lindsay Lohan was released from jail at 1:35 a.m. PT Monday after serving 13-days of a 90-day sentence.  According to Steve Whitmore, spokesman for the Los Angeles County Sheriff Department, she was picked up by staff from UCLA Medical Center and will enter a specialized program that deals with psychological and addiction problems simultaneously.

Whitmore said: "She was given two huge bags full of mail and books.  She was noticeably moved by the amount of mail and books sent to her.  She thanked everybody as she left."

Lohan was taken to the facility in a mini-van followed by two police cruisers.  Her mother followed the entourage in another vehicle.  Lindsay arrived at 1:54am PT.  The hospital was under heightened security with both uniform and plainclothes personnel standing by as she checked in at the substance abuse treatment center - see photo below.

The decision to have the actress enter the UCLA Medical facility was an 11th hour departure from the original plan to send Lindsay to Morningside Recovery in Costa Mesa.   District Attorney spokeswoman Jane Robison said: "There was concern that Morningside Recovery was not a secure enough facility."  She went on to say that Judge Marsha Revel was concerned that drugs could be easily passed on to the actress.

Lohan runs the risk of being jailed for contempt of court if she violates any of the rules during her treatment.  She will be held to absolute sobriety and must be drug free until August 2011, and will undergo random drug testing until her probation ends.

View photo of Lilo's convoy entering the rehab facility and video footage below: