Listen to The Allman Brothers Band on iHeartRadio

Allman Brothers fans are mourning the death of the band's former guitarist Dan Toler.  A post on "Dangerous Dan's" Facebook page says the rocker passed away in his sleep early Monday morning. 

The message adds that Dan's family is asking for privacy at this time, and appreciates all the love and support they've received from fans.  Dan was 65. 

UltimateClassicRock says Toler had been battling ALS.  He was diagnosed with the condition, commonly known as Lou Gehrig's disease, since 2011. 

Dan came to fame in the late '70s as a member of Dickey Betts & Great Southern.  He was added to the Allman Brothers Band lineup with the group's reunion in 1978, remaining with the Allmans until the band split up again in 1982.  Toler continued his relationship with Gregg Allman, serving in the Gregg Allman Band for the albums I'm No Angel and Just Before The Bullets Fly