Amy Winehouse Death: No Drugs in System

According to preliminary toxicology reports released by Amy Winehouse's family, the singer had no drugs in her system at the time of her death.

our editor recommends

Amy Winehouse Death: M.I.A. Releases Tribute Song, '27' (Listen)

Amy Winehouse Death: Russell Brand's Tribute Touted by Fans

"Toxicology results returned to the Winehouse family by authorities have confirmed that there were no illegal substances in Amy's system at the time of her death," a rep for the family tells TMZ.com.

STORY: Amy Winehouse's Death: What Hollywood Is Saying

"Results indicate that alcohol was present but it cannot be determined as yet if it played a role in her death," adds the statement.

PHOTOS: Amy Winehouse Funeral

"The family would like to thank the police and coroner for their continuing thorough investigations and for keeping them informed throughout the process.  They await the outcome of the inquest in October," it concluded.

Winehouse's father, Mitch, recently returned donations made to a foundation in her honor after he said somebody "stole" the domain AmyWinehouseFoundation.com.

PHOTOS: Hollywood's Notable Deaths

An homage to Amy Winehouse will be aired at the MTV VMAs on Aug. 28.

Winehouse was found dead in her London home on July 23.