Josh Fauver, a former bassist for the Georgia indie-rock band Deerhunter, has died at 39-years-old.

Over the weekend, it was revealed on social media that Fauver had died. While a representative for the band confirmed the news, the cause of death has not been announced. The band posted an old photo of the band, which included Fauver, with the caption “very difficult times.”

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Fauver had played in the band from 2004 to 2012, and was featured on four of the group’s records: self-tilted, Cryptograms, Weird Era and Microcastle, and Halcyon Digest. He originally joined Deerhunter in 2004 after the previous member, Justin Bosworth, died from skateboard-related injuries.

According to BrooklynVegan, frontman Bradford Cox told Bomb Magazine that Fauver left the band in 2012 due to personal reasons.

“Josh Fauver, the longtime bass player, not the original bass player, but the longest running bass player, for unknown reasons that have not been explained to me, just… didn’t want to be in the band anymore for personal reasons, which I’m not privy to,” Cox said. “There was no animosity or acrimony.”

He was best-known for his skills on the bass, as well as co-writing the track “Nothing Ever Happened” off 2008’s Microcastle. Additionally, Fauver was in Atlanta-based bands Electrosheep International and S.I.D.S., as well as his solo project, Diet Cola. He also ran a label called Army of Bad Luck.