Sepultura founding members and brothers Max and Igor Cavalera have confirmed that they are collaborating on new music for the first time in more than 10 years. According to reports, the material will be released as a completely new project, separate from Max's work in Soulfly.

Jose Mangin of Sirius Satellite Radio's Hard Attack just returned from Phoenix, Arizona where he visited Max at his home and got a chance to hear some of the music that has been written for this new band.

The material, which has been described by Mangin as "sick"-sounding, may include guest appearances by members of Napalm Death and Soulfly guitarist Marc Rizzo, although this has not yet been confirmed.

Igor Cavalera left Sepultura in June 2006 due to "artistic differences." He has since been replaced by Jean Dolabella (ex-Udora).

Igor's departure from Sepultura came five months after he announced that he was taking a break from the group's touring activities to spend time with his second wife and their new son (who was born in January 2006). Filling in on drums during the band's spring 2006 European tour with In Flames was Roy Mayorga, who played with Max in Soulfly for several years in the late '90s and again in 2001-2003.

Max Cavalera left Sepultura in December 1996 after the rest of the band fired his wife Gloria as the group's manager.