Randy Blythe attends his trial at the Municipal Court in Prague today.

A Czech court has acquitted the frontman of US heavy metal band Lamb of God, Randy Blythe, of charges he caused the death of a fan at a concert in Prague three years ago.

The prosecution had accused Blythe, 42, of causing the death of the 19-year old fan by pushing him off the stage at a 2010 concert.