Demi Lovato was rushed to a Los Angeles hospital on Tuesday for an apparent heroin overdose, TMZ reports.

According to TMZ, law-enforcement sources say that Lovato was transported from her home in Hollywood Hills shortly before noon. The singer is reportedly currently being treated, but additional information about her condition or what exactly happened are not yet available.

“Page Six” further reports that Los Angeles Police Department would not confirm whether or not Lovato has been taken to the hospital. But they would tell the gossip column that they responded to a “medical emergency” at her home at 11:40 a.m. local time.

Lovato has long been open about her struggles with substance abuseand eating disorders. However, in June, she released a new single, “Sober,” in which she announced that she relapsed following six years of sobriety. She sings in the ballad, “Momma I’m so sorry I’m not sober anymore / And Daddy please forgive me for the drinks spilled on the floor / To the ones who never left me, we’ve been down this road before / I’m so sorry, I’m not sober.”

Update: Demi Lovato is reportedly stable after her overdose Tuesday. A source has told People Lovato is “okay and stable” after being treated with Narcan, the prescription medication used to block the effects of opioids.

Update 8:25 pm: TMZ has retracted its previous report that Lovato had been admitted to the hospital for a heroine overdose — which was attributed to “law enforcement sources” — with a new source “connected to the singer” saying it was a different substance that sent her to the hospital. The new source did confirm the use of Narcan to treat the singer, but did not specify further what drugs were involved in the incident.

Update 8:43 pm: Lovato’s family has provided a statement, posted to Twitter by Variety writer Stuart Oldham.

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