It is reported that singer Demi Lovato is in a stable condition in hospital in Los Angeles following a suspected drug overdose. 

The 25-year-old singer-songwriter was taken to a Los Angeles hospital after being found unconscious at her home on Tuesday, according to NBC.

A spokesperson told NBC the star was "awake and with her family" and warned that "some of the information being reported is incorrect and they respectfully ask for privacy".

Celebrity news website TMZ who first reported the news quoting law enforcement sources, said the 25-year-old had been taken to hospital from her home in the Hollywood Hills.

A Los Angeles Police Department spokesman told the Press Association that its officers were called to an address in Hollywood at around 11:00am local time on Tuesday.

The spokesman said a 25-year-old female was in the process of being taken to hospital when the officers arrived and is in a stable condition.

Entertainment Tonight reports that they have been told by a number of sources that the star is being treated for a suspected drug overdose.

Demi Lovato at the Billboard Music Awards in Las Vegas in May

Lovato, who has openly discussed her battles with addiction, depression and eating disorders, released her new song Sober last month. After six years of sobriety, the ballad's lyrical content raised concerns about Lovato's health.

If you have been affected by any of these issues please contact the Samaritans on 116 123.

Among the fans sending their best wishes were presenter Ellen DeGeneres and singer Ariana Grande: