Paris Jackson, the daughter of late pop legend Michael Jackson, is in hospital after attempting to kill herself, a publicist has confirmed.
Paris, 15, is physically fine, her grandmother's lawyer told the Associated Press news agency.
Emergency officials said they responded to a reported overdose in the Calabasas area of Los Angeles where Paris lives, but did not identify the patient.
Local media say she left the family home at about 02:00 PST (09:00 GMT).
Earlier on Wednesday, Angel Howansky, a long-time publicist for Joe Jackson - Michael Jackson's father and the girl's grandfather - could not confirm reports of a possible drug overdose or multiple cuts on her wrist.
Paris, Michael Jackson's only daughter, is currently part of a multi-million dollar lawsuit against the concert promoters AEG Live, who the Jackson family says bears responsibility for her father's death from an accidental drug overdose in June 2009.
The BBC's Regan Morris in Los Angeles says Michael Jackson went to great lengths to shield his children from the public eye, shrouding them in masks and baggy clothes so they could not be recognised.
He wanted to give them the chance for a more typical childhood than he had as a child star, but after being sheltered for years, Paris Jackson has lived a very public life since his death, our reporter says.
Paris is a cheerleader at her private school and seems comfortable in the limelight - appearing poised and articulate at Michael Jackson tribute events with her grandmother and her two brothers, known as Prince and Blanket.
She is also a popular target for the paparazzi and tabloids, our reporter adds.
Paris also has a popular Twitter account where she discusses music and homework and dispenses make-up tips to her million-plus followers.
Her most recent tweet was a quote from a famous Beatles song: "yesterday, all my troubles seemed so far away now it looks as though they're here to stay."