Rockers Coheed And Cambria have lost another band mate after parting ways with drummer Chris Pennie, just three months after firing troubled bassist Michael Todd.

The stars dismissed Todd in August, shortly after he was arrested and charged with armed robbery for allegedly holding up a pharmacy in Attleboro, Massachusetts before a Coheed and Cambria gig.

Now, founding members Claudio Sanchez and Travis Stever have lost Pennie, who has announced plans to focus his efforts on other projects, including his work with hard rock bands Return to Earth and Fight Mannequins.

A statement released by the duo reads: "Tough decisions were made today that will help shape this band for the coming years. We extend our deepest appreciation to Chris Pennie for an incredible journey."

And Pennie adds, "I am very thankful for the years that I shared the stage with the guys and want to thank the amazing, supportive fans that I've met while on tour, but there are a lot of exciting projects on the horizon, in addition to Return To Earth and Fight Mannequins, that I feel require my absolute 100 per cent commitment and attention. I feel that this is the right time to make that happen."

Pennie joined Coheed and Cambria in 2007 as a replacement for Josh Eppard.