"The toxicological analysis reports ten substances so far found in Taylor Hawkins' body, including THC (cannabis), antidepressants, benzodiazepines and opiates," prosecutors said in a statement.
Medical examiners continue to work "to fully clarify the facts leading to the death" of Hawkins, he added.
Shortly before dying, the drummer complained of "chest pain".
Called for help, a general practitioner tried unsuccessfully to resuscitate him, according to the town hall of Bogota.
The Foo Fighters, one of the most notorious alternative rock bands on the American scene, often acclaimed by critics, winner of several Grammy Awards and author of big hits, were to play this Friday in Bogota on the occasion of the Estéreo Festival Picnic.
The concert was canceled, and the thousands of people waiting for the show to begin observed a minute of silence.
The group also canceled a convert scheduled for March 27 in Sao Paulo, Brazil.
Taylor Hawkins had been a part of the Foo Fighters since 1997, playing drums on some of their biggest hits, including "Learn to Fly" and "Best of You."
He previously played drums for Canadian indie singer Alanis Morissette.
The Foo Fighters celebrated their 25th anniversary last year and recently produced "Studio 666", a rock horror film.
© 2022 AFP