Lisa Marie Presley’s cause of death remains unknown over a week after her untimely demise. After passing suddenly last Thursday following a heart attack, the singer-songwriter had an autopsy. However, the Los Angeles County Coroner ordered more tests before making a decision.

“Presley’s cause of death was not determined after she was examined on January 14. Deferred means that the medical examiner is requesting additional studies because the cause of death was not determined after an autopsy. “Once the findings of the tests or studies are in, the doctor reassesses the case and decides the cause of death,” says Sarah Ardalani, a representative for Yahoo Entertainment.

Lisa Marie Presley, Elvis Presley’s only child, died on January 12 at 5:08 p.m. PT at West Hills Hospital. She had two weeks till her 55th birthday.

Ardalani says there is an “ongoing death investigation,” so she cannot comment on the specific tests being performed.

According to a Los Angeles County Sheriff’s Department spokeswoman, there is no current police investigation, and “the coroner’s office is addressing this problem.”

According to CNN’s Dr. Sanjay Gupta, there are additional reasons for the postponement, including a review of a person’s medical history.

According to the preliminary autopsy, the body had suffered injuries, a stroke, significant infections, blood clots, and a pulmonary embolism. “They might indicate a cause of death if you find those during the initial physical autopsy, and they are evident. Certain goods, however, have been postponed.”

Graceland, Elvis Presley’s iconic mansion in Memphis, Tennessee, is now preparing for Lisa Marie’s funeral. A memorial service will be held on the front lawn on Sunday. In the same grave as her adored son Benjamin Keough, who committed suicide in 2020, will rest Lisa Marie. According to TMZ, her burial site, across from her well-known father, was being dug up earlier on Wednesday. Elvis Presley died of a heart attack at Graceland in 1977.

Just two days after her prominent appearance at the Golden Globe Awards, Lisa Marie suffered a heart attack at her home in the Calabasas-Agoura Hills region. The singer was found to be unresponsive, and the housekeeper frantically dialed 911. The call’s audio was obtained by the New York Post, and it finishes with a man, who is thought to be Lisa Marie’s ex-husband Danny Keough, seizing the reins and conversing with the operator.

According to TMZ’s claim last week, Danny gave Lisa Marie CPR until the paramedics came. Before being sent to the hospital and put on life support, she reportedly regained a pulse at the scene. Danny and Lisa Marie, who split up in 1994, had a tight relationship.

Riley Keough, an actress, was their 33-year-old daughter, in addition to Ben. Harper and Finley, twins who are 14 years old, were the next two children Lisa Marie had with her fourth husband, Michael Lockwood. In the event of their mother’s untimely passing, all three children will receive Graceland.

Editor’s note: The sheriff’s department’s most recent information has been added to the post, initially published on Wednesday, January 18, at 12:50 p.m. ET.