Rosie O'Donnell's 17-year-old daughter is missing

Rosie O'Donnell's daughter is missing, according to the comedian's official website.

Chelsea O'Donnell, 17, was last seen on Tuesday, August 11. Nyack, New York police authorities have been searching for her in the Rockland County area since Sunday, August 16.

These details may help in identifying Chelsea:

• Chelsea was was wearing a black sweatshirt hoodie, dark ripped blue jeans, women's grey converse sneakers and a black backpack.
• She as a large tattoo on her right side of a dream catcher with the word "Breathe."
• She left her home with her six-month-old therapy dog. The dog's name is Bear, a terrier weighing 9 lbs, with brown and black fur.

Time is of the essence as "Chelsea stopped taking her medicine and is in need of medical attention."

O'Donnell tweeted the following, with a photo of Chelsea:

 If you have any information, please contact authorities at 845-358-0206 or 911.

NOW WATCH: Watch the incredible rescue at sea of a man who was missing for 66 days

Please enable Javascript to watch this video