"God called anuther soldier home! Rest in Paradise our brother Hussein Fatal he passed away in a car accident! Pray for his family & kids at this time!" The Outlawz wrote on Facebook.
The New Jersey-born rapper appeared on tracks for Tupac's 1996 double album, All Eyez on Me, including tracks "All Bout U" and "When We Ride." He also delivered a verse on Tupac's famous diss track "Hit 'Em Up."
The Outlawz went on to release numerous albums following Tupac's death in 1996, including their last release, Perfect Timing, in 2011.
Outlawz member Mutah "Napoleon" Beale also paid tribute to his fallen friend on Facebook. Fatal and Napoleon converted to Islam during their time with Tupac in the '90s, Complex reports.
"From Allah we belong to Allah we return it is confirmed our brother hussein fatal member of the outlawz returned to Allah last night due to a car accident. Our brother fatal did accept islam and We ask Allah to have mercy on him. He was my old group member and friend for over 20 years and he will be missed. Death comes sudden with out warning and we ask Allah to give us a good ending," he wrote.