TMZ reports that officers were on the scene late Wednesday investigating the death as a possible overdose -- due mainly to her history with drugs. Prescription bottles were found in the home, but there were no illegal drugs ... according to our sources.
Cops say there are no signs of foul play.
Chyna was 46 years old.
A statement was posted to Chyna's official Twitter account confirming the death ... saying, "It is with deep sadness to inform you today that we lost a true icon, a real life superhero."
"She will live forever in the memories of her millions of fans and all of us that loved her."
Laurer's manager first confirmed the death to ProWrestlingSheet.com.
She posted a video to her YouTube page earlier this week -- she looked like she was struggling.