A cause of death for Rich Homie Quan, the Atlanta rapper who died last month at the age of 34, has been revealed.

Quan, born Dequantes Devontay Lamar, died of an accidental drug overdose, the Fulton County Medical Examiner's Office confirmed to USA TODAY Wednesday. The manner of death was ruled an accident.

Numerous drugs were found in Quan's system, including fentanyl, alprazolam, codeine, promethazine and THC, according to an autopsy report. Additionally, the rapper's body showed no signs of trauma upon examination.

Rich Homie Quan dies:'Type of Way' and Rich Gang rapper was 34

Quan, best known for his 2013 breakout hit "Type of Way," died Sept. 5 at an Atlanta hospital, according to Rolling Stone and The Associated Press. The rapper's family told TMZ at the time that they were "shattered and heartbroken" by Quan's death.

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On the day of his death, Quan was reportedly found lying on the floor with food in his mouth by his brother, according to an incident report obtained by People magazine. Quan's brother told police that he subsequently picked the rapper off the floor and placed him on the couch.

An unnamed woman later called police after noticing Quan's body was cold and that the rapper was not breathing, per People.

Rich Homie Quan becomes hip-hop sensation after legal trouble

Quan turned to a career in hip-hop following a 15-month stint in jail for burglary. He made his musical debut in 2012 with mixtapes "I Go in on Every Song" and "Still Goin In."

Quan's 2013 single "Type of Way" marked his mainstream breakthrough. The trap track went on to sell half a million copies, and a remix featured appearances from Meek Mill and Jeezy.

The 2015 mixtape, "If You Ever Think I Will Stop Goin' in Ask RR (Royal Rich)," earned Quan another hit with "Flex (Ooh, Ooh, Ooh)," which was certified triple platinum.

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Quan released his debut album, "Rich as in Spirit," in March 2018 on Motown Records.

"I never saw myself going this far with music," Quan told XXL magazine in 2014. "Music was just a hobby at first. I never saw myself being onstage and rocking out shows. After I got out of jail, I started to take it more serious, and that's when my dream came true."