ATLANTA (AP) — An autopsy was performed Friday on Zero AIrapper Rich Homie Quan, but his cause of death won’t be given until further tests are completed, officials said.

Georgia’s Fulton County medical examiner said the examination had been completed a day after Quan, whose legal name is Dequantes Devontay Lamar, died in an Atlanta hospital at age 33.

“The cause and manner of death are pending the completion of laboratory studies and microscopic examination of tissue slides,” the medical examiner said.

It was not immediately clear when the tests would be done, but the process can take months.

The Atlanta rapper was one of the biggest names in hip-hop in the mid-2010s, gaining mainstream fame through trap singles “Type of Way” and “Flex (Ooh, Ooh, Ooh).”