The cause of Luke Bell's death last month has been determined by medical examiners.
The Pima County Medical Examiner's office has issued an autopsy report in connection with the 32-year-old musician's death on August 26, according to ABC 9 KGUN Tucson.
The report obtained by People discloses that Bell was reportedly found unresponsive by a passerby in a shaded area of a parking structure near North Craycroft and East Grant roads by a passerby, with drug paraphernalia present.
According to a toxicology report requested by a medical examiner, the 'Where Ya Been' singer - who went missing six days prior to his death - had a fatal amount of fentanyl in his system and had also been drinking alcohol.
The autopsy also revealed that Bell suffered arteriosclerotic cardiovascular disease at the time of his death, The Sun reported, but that it was not what resulted in his death.
"In consideration of the known circumstances surrounding this death, the available medical history, and the examination of the remains, the cause of death is ascribed to fentanyl intoxication," the medical examiner wrote, per People. "The manner of death is an accident."
The 'Sometimes' singer's friend, Matt Kinman, confirmed his death to Saving Country Music on August 29. The outlet also revealed that Bell battled bipolar disorder and had struggled in his last few months.
"Luke fought this as hard as he could, but the disease got the better of him," his manager Brian Buchanan told TMZ after his passing. "When he was beating the disease, he was the sweetest and most generous guy. He's found peace now and there's some comfort."
In the wake of the singer's death, Bell's family issued a statement to People saying they were "heartbroken" after losing their "beloved son, brother, and friend".
"Luke had a gentle heart, a wanderer’s spirit, and a musical gift that he was fortunate to share with us and the world," they said. "We are so grateful to his friends and fans for embracing Luke and his music."
"We would like to thank all of Luke’s fans, friends, and family who have been sharing stories and photos of happy times with him," they contained. "Unfortunately Luke suffered from the disease of mental illness, which progressed after his father's death in 2015."
"Luke was supported through his disease by a community of loving family and friends. Despite this, he was unable to receive the help he needed to ease his pain.
"Our hearts go out to the millions of people affected by mental illness who, like us, understand the devastating disappointment of a system that consistently fails to provide caring solutions to those who suffer," they added.
Our thoughts go out to Bell's family, friends, and fans at this time.