Mac Miller's cause of death revealed as an accidental overdose of fentanyl, cocaine and alcohol

The rapper passed away aged 26 in September.

Mac Miller's official cause of death has been revealed.

An official toxicology report released by the Los Angeles County Coroner's Office revealed that the rapper died from "mixed drug toxicity", TMZ reports.

Being ruled as an accidental overdose, a combination of fentanyl, cocaine and alcohol was what killed the 26-year-old, real name Malcolm James McCormick. It is being reported that the mix of all three drugs, not the amount of each, triggered his cardiac arrest.

Mac Miller passed away on September 7. Following his death, his fifth album Swimming reached a new peak of 17 on the UK's Official Albums Chart. View Mac Miller's complete Official UK Chart history in full.

Last week, the benefit concert Mac Miller: A Celebration of Life took place in Los Angeles, featuring Chance The Rapper, Travis Scott, SZA, Vince Staples, Thundercat, Anderson .Paak, Miguel, Ty Dolla $ign and more. The event raised money for the Mac Miller Circles Fund, a nonprofit organisation that supports youth arts and community-building programs in Miller's hometown of Pittsburgh.