Hayden Panettiere Getty Images

New details have emerged surrounding the shocking death of Hayden Panettiere on Sunday.

Police in Greenville, South Carolina, “accompanied by EMS personnel, responded to a report of an unresponsive female” Sunday afternoon, according to a statement given to NBC News. “Upon arrival, medical assistance was administered; however, the individual, later identified as Hayden Panettiere, was pronounced deceased at the scene.”

Police said the case is under investigation by the Greenville Police Department in conjunction with the Greenville County Coroner’s Office. “A preliminary investigation has not indicated any signs of foul play or suspicious circumstances.”

Coroner Mike Ellis issued a statement (via People) saying that an autopsy was “completed” Monday (Aug. 17), and that “no signs of trauma were discovered that would have contributed to the death.” Ellis continued: “The cause and manner of death remain pending further investigation and the completion of additional studies. This investigation remains active and ongoing. No further details are available for release at this time.”

According to dispatch audio obtained by People, officials on the call discussed an “overdose” and “cardiac arrest” around the time of Panettiere’s death. “I don’t have any more information at this time, but it’s looking as though that is the case,” a rep for Panettiere told People.

Further details, including who she was with or who made the 911 call, are still unknown. TMZ reports that after first responders arrived on the scene, they attempted to resuscitate Panettiere using CPR and “advanced cardiac life support.” Panettiere was reportedly pronounced dead around 2:30 p.m. on Sunday.

“It is with profound sadness that we share the tragic passing of our beloved Hayden. She was an incredible light and a force of nature who brought immeasurable love and joy to all who knew her — and to the millions who watched her onscreen,” said her father, Skip Panettiere, in a statement to Rolling Stone provided by the actress’ representative. “We ask for privacy as our family takes time to process this unimaginable loss.” Details surrounding her death are currently unknown.

Panettiere was known for her broad-ranging film and television roles in Remember the Titans, Heroes, Raising Helen, Scream 4, Scream VI, Ice Princess, I Love You, Beth Cooper, and Nashville. She had long been candid about her struggles navigating child stardom and fame, often opening up about her experiences with severe postpartum depression, substance abuse, and anxiety.

This story was updated at 1:42 p.m. ET with a statement from the coroner.

From Rolling Stone US.