HLocklearDrunk0606708_24_X17WM230crop.jpgHeather Locklear remains hospitalized at Los Robles Hospital in Thousand Oaks in the Intensive Care Unit.

The hospital spokesperson, who said the actress was admitted in "serious condition," said the following:

    "She is being clinically evaluated and will continuously be monitored throughout the day."

The spokesperson adds that there will be "no visitors at this time." Also, "the time and date of discharge is unknown at this time."

A source tells ET that Locklear was "out of control" at the time her sister called 911 on Thursday.

Below is a photo of Locklear's family members walking with one of her doctors.


The source adds, "Heather became a different person on drugs" and that she's been in and out of rehab over the years. Locklear has also reportedly had a tough time dealing with her split from Jack Wagner.

UPDATE: Locklear's rep issued the following statement: Heather was discharged late this afternoon at approximately 5:00 p.m.