Chuck Berry died of natural causes, according to a TMZ report.
The legendary guitarist's personal doctor will reportedly sign off on the cause of death, and no autopsy will be conducted, after Berry died in his Missouri home at age 90 on Saturday.
WATCH: Legendary Musician Chuck Berry Dead at 90
"St. Charles County police responded to a medical emergency on Buckner Road at approximately 12:40 p.m. today (Saturday, March 18)," the police department shared on their Facebook page over the weekend. "Inside the home, first responders observed an unresponsive man and immediately administered lifesaving techniques. Unfortunately, the 90-year-old man could not be revived and was pronounced deceased at 1:26 p.m."
Berry is survived by his wife, Themetta "Toddy" Suggs, daughters Melody Exes Berry-Eskridge, Ingrid Berry and Aloha Berry, and son Charles Berry Jr.
MORE: Keith Urban, Ringo Starr and More Stars React to Chuck Berry's Death
The vastly influential singer-songwriter's death rocked the music world, as artists from Keith Urban, to Bruno Mars, to Ringo Starr all took to social media to express their condolences.
Berry had previously announced a new album for 2017, which will be released posthumously.