911 call shows Hayden Panettiere’s friend found her ‘unresponsive’ from apparent cardiac arrest: police

Tragic “Heroes” and “Nashville” star Hayden Panettiere’s body was found by a friend who told 911 she was unconscious from an apparent cardiac arrest, according to police sources.

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Panettiere, 36, was found “unresponsive” in a Greenville, South Carolina, apartment just before 2 p.m. Sunday – and medics tried to resuscitate her with “advanced cardiac life support,” TMZ reported.

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Medics performed chest compressions but she was pronounced dead at 2:32 p.m.

Cops revealed Sunday her death had no “signs of foul play” in her death. Police said she was found by an “acquaintance,” without revealing their identity.

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An autopsy is set to be carried out Monday.