Demi Lovato has been taken to hospital in Los Angeles, according to reports.
American celebrity gossip website TMZ reported on Tuesday the US singer, 25, was taken ill following a suspected overdose at her home in the Hollywood hills.
A Los Angeles Police Department spokesman told the Press Association the force was called to an address in Hollywood at around 11am local time.
They said the patient, a 25-year-old female, was in the process of being taken to hospital when they arrived and is in a stable condition.
Police cannot confirm the identity of the patient.
- PA