Police searching for Rosie O'Donnell's daughter

UPDATE: Rosie O'Donnell tweeted that her daughter has been found and is safe.

NEW YORK -- Police are searching for Rosie O'Donnell's 17-year-old daughter Chelsea, who has not been seen since leaving the family's home north of New York City last Tuesday.

O'Donnell's daughter left the house with a therapy dog. She has not been taking needed medication, according to O'Donnell's spokeswoman, Cindi Berger.

"Chelsea, like millions of people, lives with mental illness. It has been a difficult road for Chelsea and her family and they just want her back safe." Berger said.

She was last seen wearing a black sweatshirt hoodie, dark ripped blue jeans, gray Converse sneakers and a black backpack. Police authorities in Rockland County, New York, have been searching for her since Sunday. O'Donnell tweeted that her daughter may be in New York City, which is about 25 miles south of her home in Nyack.