Lisa Marie Presley, American singer and only child of Elvis Presley, has died at the age of 54, her family has confirmed. In a statement, the Presley family said they were “shocked and devastated” by the news, which was revealed on Thursday.

The American singer-songwriter was “rushed” for medical treatment earlier the same day, but further details were not immediately released.

American media sources report that Lisa Marie suffered a heart attack. She was found unconscious and in suspected cardiac arrest at home in Calabasas, California, TMZ reports.

The media outlet says ex-husband Danny Keough, who lived with Lisa Marie, performed CPR. TMZ says a “bystander” administered adrenaline before paramedics arrived to take Lisa Marie to the hospital.

In a statement, the Presley family said: “Priscilla Presley and the Presley family are shocked and devastated by the tragic death of their beloved Lisa Marie.

“They are very grateful for everyone’s support, love and prayers and ask for privacy during this very difficult time.”

It comes shortly after Presley attended the 80th annual Golden Globe Awards on Tuesday, where actor Austin Butler took home the award for best actor for his portrayal of her father.

Her mother, Priscilla Presley, said Thursday that she was receiving “the best care” at the hospital and asked fans to keep the family in their prayers.

Following in her father’s footsteps, Presley pursued a career in the music industry, releasing three albums. To Whom It May Concern in 2003, What Now in 2005 and Storm & Grace in 2012.

In 2018, she was featured on a new record titled Where No One Stands Alone, released to celebrate her father’s love of gospel music and featuring 14 original performances he recorded.

The title track was a reimagined duet in which Lisa Marie duetted with her father, who died in 1977 at the age of 42.

Days before her death, she visited Graceland, her father’s mansion in Memphis, Tennessee, to celebrate his birthday on January 8.

Presley released three albums during her career in the music industry (Barry Brecheisen/AP)

After her father’s death, she became co-heir to his estate at the age of nine, along with her grandfather, Vernon Presley, and great-grandmother, Minnie Mae Hood Presley.

In 1993, when she turned 25, she took full control of the estate and established the Elvis Presley Trust to continue its successful management.

Last year, Presley wrote an essay published by the US magazine People about “the terrible reality” of her grief after the suicide of her son Benjamin Keough in 2020.

“Since I was 9, I have struggled with death, grief and loss. I’ve had it more than anyone in my life and somehow I got this far,” she wrote in August.

The singer was married four times, first to musician Danny Keough, then to singer Michael Jackson, actor Nicolas Cage and music producer Michael Lockwood.