Anna Nicole Smith died of accidental overdose

MIAMI -- The Seminole County police chief says Anna Nicole Smith died of an accidental overdose.

Broward County Medical Examiner Joshua Perper says a combination of medications led to ?combined drug intoxication.? They included sleeping medication and a lengthy list of others, including methadone.

Perper says Smith had been on several anti-depressant and anti-anxiety drugs.

The sleeping medication can be used as a sedative for treating insomnia, alcohol withdrawal, anxiety and post-surgery pain.

Seminole Police Chief Charlie Tiger says investigators have ?found nothing to indicate any foul play.? The medical examiner says the detailed autopsy also showed no evidence of disease.

Smith died on February eighth, but the autopsy report was delayed after the Broward County medical examiner received additional evidence from police. Authorities have not disclosed any of that evidence.

Smith was found unresponsive in a Hollywood, Florida, hotel suite.

The sudden nature of her death, along with the suspicious circumstances surrounding her 20-year-old son's death five months earlier, have given rise to intense speculation.