It has been confirmed that former "O.C." actress Mischa Barton is currently in the hospital after being [article id="1616399"]removed from her home Wednesday afternoon[/article] due to what the Los Angeles Police Department is calling "medical issues."

"Ms. Barton was safely transferred to medical treatment for which she remains hospitalized, as per the recommendation of her doctor," her rep told MTV News in a statement. The representative did not address the "Access Hollywood" report that the actress was placed under an involuntary psychiatric hold.

According to People.com, a pal of the actress said that Barton "has been dealing with a lot of personal issues" as of late. The source added that they aren't sure whether Barton, who was [article id="1585185"]sentenced to three years' probation for a DUI in 2008[/article], is completely healthy: "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 didn't make it to the New York premiere of her new movie, "Homecoming," on Thursday because she was hospitalized at Cedars-Sinai Medical Center in Los Angeles, according to reports. She was previously hospitalized in 2007 after reportedly suffering an adverse reaction to medication.

The actress is scheduled to make her return to TV this fall on the new CW show "The Beautiful Life." When contacted by MTV News, a spokesperson for the network had no comment on the hospitalization but said neither the show's production nor its September premiere have been affected by it.