Actress and singer Demi Lovato was hospitalized Tuesday morning after an apparent drug overdose, according to TMZ.

Law enforcement told TMZ that Lovato, 25, was rushed to an L.A. hospital from her home in Hollywood Hills just before noon. The outlet reports that she was unconscious when emergency responders arrived and that she was treated with Narcan at her home before being transported to the hospital.

TMZ initially reported that the drug she overdosed on was heroin, however, they later retracted that statement.

Just after 3 p.m. PT, Lovato's aunt, Kerissa Dunn, posted on social media that Demi is "awake and responsive."

TMZ reports that Lovato was out celebrating a friend's birthday on Monday night.

Lovato recently performed at Amalie Arena on March 31 as part of her tour with DJ Kahled. Lovato is scheduled to perform in Atlantic City, New Jersey on Thursday. There is no word yet on whether or not that show will have to be rescheduled.

In March, Lovato celebrated six years sober, she revealed in a Tweet.

Just officially turned 6 years sober. So grateful for another year of joy, health and happiness. It IS possible. :pray::skin-tone-3: — Demi Lovato (@ddlovato) March 15, 2018

However, just three months later the singer released a song titled, "Sober" where she revealed her ongoing struggle with addiction, implicating that she had relapsed.

Sober Lyrics: "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 anymore"

The day the song was released, Lovato tweeted a link to the song with the words “My truth.”

Several celebrities have responded to the news of the overdose on Twitter, with a show of support to Lovato.

My friend @ddlovato is one of the kindest, most talented people I’ve ever met. Praying for her right now, addiction is a terrifying disease. There is no one more honest or brave than this woman. — Brad Paisley (@BradPaisley) July 24, 2018

I love @DDLovato so much. It breaks my heart that she is going through this. She is a light in this world, and I am sending my love to her and her family. — Ellen DeGeneres (@TheEllenShow) July 24, 2018

only love and support, save the rest 🌍. ❤️ @ddlovato — Alyson Stoner (@AlysonStoner) July 24, 2018

Hang in there @ddlovato - sending good energy and love. — ADAM LAMBERT (@adamlambert) July 24, 2018