The late Amy Winehouse's father Mitch Winehouse has revealed the cause of her death. She was apparently was trying to detox from alcohol and may have overdosed on a powerful anti-anxiety drug and suffered a seizure, he said.

Mitch Winehouse told CNN's Anderson Cooper that traces of the prescription drug Librium, also is used to treat withdrawal symptoms during detox from alcoholism, were found in his daughter's body.

"Everything Amy did, she did to excess," Mitch Winehouse said at a taping of Anderson Cooper's show Anderson, which debuts Monday. "She drank to excess and did detox to excess".

However he added that he was only speculating. The official cause of death is yet to be established.

Check out Winehouse's pictures highlighting her struggle with substance and alchohol abuse.

Amy Winehouse's drastic weight loss while addicted on substancesReuters
Amy Winehouse's cause of death is still a mystery. Toxicology reports revealed were "no illegal substances" in her body at the time of her death, the singer's family said. .Reuters
"Amy Winehouse Dead" has been the most popular Google search in the UK this summerReuters
A preview of Amy Winehouse's duet with Tony Bennett, her last ever recordings has been released.Reuters
Amy Winehouse and Blake Fielder Civil after a fight related to drugs
Some of Sam Shaker's portraits of the late Amy WinehouseThe Sun
Amy Winehouse looking dazed and holding what seems to be a makeshift crack pipe out of a medicine bottle and aluminum foil.Celebrity Smack Blog
The search has begun to find an actress to play the late Amy Winehouse in a movie about her life.REUTERS
Amy Winehouse with goddaughter Dionne Broomsfield and Kelly OsbourneJust Jared
Amy Winehouse seen with what seems to be cocaine residue in her nose.Reuters
Amy Winehouse's last concert in Belgrade, Serbia in June where she performed "drunk" and "out of sorts". Over 20,000 booed the singer after forgetting lyrics, mumbling, and drinking too much