Britain's Got Talent's runner-up Susan Boyle has been taken to a private London clinic with exhaustion, BBC reported.
A woman was taken voluntarily by ambulance to a clinic, police said.
Officers were called to a London hotel on Sunday at 1800 BST to doctors assessing a woman under the Mental Health Act, Scotland Yard said.
The Sun said the Scottish singer was admitted to the Priory clinic with exhaustion, a day after she lost out to dance group Diversity in the ITV1 show.
The Priory Clinic said: "We can neither confirm nor deny the reports."
Diversity beat the West Lothian singer to be named the winner of the talent show on Saturday night in a final watched by an audience of 18 million.
On Sunday, it emerged Boyle was taking time off on the advice of a doctor.
Television company talkbackThames released a statement: "Following Saturday night's show, Susan is exhausted and emotionally drained.
"She has been seen by her private GP who supports her decision to take a few days out for rest and recovery."
"We offer her our ongoing support and wish her a speedy recovery."
The singer became an international singing sensation after first performing "I Dreamed A Dream" in the contest, a song she reprised for the final.
Her performances have attracted millions of hits on video-sharing websites and led to an appearance on the Oprah Winfrey show.