Singer Demi Lovato has been hospitalized due to an apparent heroin overdose.

TMZ reports that the 25-year-old was transported from her Hollywood residence and is receiving treatment.

Lovato has been vocal about her battle with addiction, mental illness and an eating disorder.

In March 2017, she celebrated six years of sobriety. However, in June she released a song called “Sober” that detailed her relapsing.

Lovato’s current state is unknown.