Hollywood star Mischa Barton has been hospitalized under involuntary psychiatric hold, Access Hollywood reported Thursday.
The 23-year-old actress is at Cedars-Sinai Medical Center in Los Angeles, the report said.
Police confirmed to People magazine that they removed her from her house but gave no further details.
"She has been dealing with a lot of personal issues," a friend told People. "I don't know if she really ever gave up some of the bad habits that had gotten out of control a couple years back."
Barton was arrested and charged with drunk driving and marijuana possession in April 2007.