NEW : Four dead , seven wounded in Baghdad church bombing Sunday evening . Death is confirmed of four at Baghdad church within 24 hours ; 11 injured at other sites . NEW : ` ` There will be no Christians left in Iraq '' if attacks continue , one man says . Christian official in Kirkuk shot to death outside his home , police say .
NEW : Four dead , 21 wounded in Baghdad church bombing Sunday evening . Bombing is one of six at Baghdad churches within 24 hours ; 11 injured at other sites . NEW : `` There will be no Christians left in Iraq '' if bombings continue , one man says . Christian official in Kirkuk shot to death outside his home , police say .