Publicist: Actress Mischa Barton improving

23-year-old was removed from home last week by police

Evan Agostini / AP

Mischa Barton is "making improvements" and plans a return to work nearly a week after Los Angeles police say they escorted her for an undisclosed medical problem.

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updated 7:26 p.m. ET July 21, 2009

LOS ANGELES - Mischa Barton is "making improvements" and plans a return to work nearly a week after Los Angeles police say they escorted her for an undisclosed medical problem.

Spokesman Craig Schneider says the 23-year-old actress is "still seeking treatment but making improvements."

He would not elaborate on Barton's condition, but said Tuesday that Barton planned to report to work on the new CW series "The Beautiful Life" later this month. A CW spokesman for the show, which stars Barton as a pill-popping supermodel, said production was scheduled to begin July 31.

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Police say they removed Barton from her home last Wednesday for an undisclosed medical problem. The department will not say what it was.