Singer Britney Spears is continuing to receive treatment in a hospital in Los Angeles amid reports that she is on a psychiatric ward.
Spears has been denied the right to visit or look after her two sons
The 26-year-old was taken to the UCLA medical centre by ambulance with a police escort in the early hours of Thursday morning.
She has been committed to a psychiatric ward for a 72-hour stay, according the the Reuters and AP news agencies.
A UCLA spokeswomen refused to confirm if Spears was at the hospital.
Her manager Sam Lutfi told reporters that the star was being held for a three-day mental evaluation on the orders of her psychiatrist, Reuters said.
US law allows for a patient to be placed on "involuntary psychiatric hold" for 72 hours if it is thought they could pose a danger to themselves or others.
Last month, Spears was admitted to Cedar-Sinai Medical Center after refusing to surrender custody of her two sons in a police stand-off.
Following the incident, sole custody of Sean Preston, two, and Jayden James, who is one, was awarded to ex-husband Kevin Federline.