The family of the late British singer Amy Winehouse says a toxicology report revealed no illegal drugs in her system at the time of her July 23rd death.

Winehouse's spokesman Chris Goodman released a statement Tuesday stating alcohol was present, but the tests could not determine what role it played in her death.

In the statement the singer's family thanked police and the coroner for their investigation into the singer's death.

The 27-year old Grammy winning Winehouse had a well documented battle with drugs and alcohol. The soulful singer reflected her struggles with substance abuse in her most successful song, “Rehab”.

Winehouse won five Grammy awards for her 2006 album “Back to Black” which featured “Rehab”. “Back to Black” topped the British charts, but the album stalled at number two in the U.S.