Police in Greenville, South Carolina, say the death of actor Hayden Panettiere has been ruled accidental, and their investigation has ended. BBC News, NBC News and CBS News report the announcement came on Wednesday.

"Based on the Medical Examiner's determination and the findings of the investigation, Hayden Panettiere's death has been ruled accidental," the Greenville Police Department said in a statement.

Panettiere, 36, was found unresponsive on August 16 at a home in Greenville where she had been staying. Despite advanced life support, she was pronounced dead at the scene, CBS News reports.

Last month, the Greenville County Coroner's Office ruled her death an accident caused by the toxic effects of several drugs. NBC News reports they were fentanyl, 4-ANPP, alprazolam, methocarbamol and quetiapine. The coroner found no signs of trauma. Police have said there were no signs of foul play.

The US Drug Enforcement Administration had also been looking into the case, NBC News and CBS News report. BBC News reports it is not clear whether that inquiry has ended, and the BBC has asked the agency for comment.

Panettiere had spoken openly about her struggles with addiction. NBC News reports she had been in rehab weeks before her death, according to the coroner's report. Her mother, Lesley Vogel, called her a "fighter" whose rehab attempts showed "her resolve to live a healthy life."

Panettiere began acting as a child. She starred in the TV shows "Heroes" and "Nashville," and in films including "Remember the Titans." In her memoir, "This Is Me: A Reckoning," she wrote about postpartum depression and grief after her brother Jansen died in 2023.

If you or someone you know is struggling with substance use, the SAMHSA national helpline is 1-800-662-4357.

What we know: Police have ruled Panettiere's death accidental and closed their investigation.
What we don't: Whether the Drug Enforcement Administration's inquiry has also ended.