NEW : `` Democracy can not be terrorized , '' Prime Minister says . Newspaper received call that bomb was outside Greece 's parliament building . Authorities closed off area before explosive was detonated . The Greek Parliament has been evacuated after a blast in the basement of its building.
NEW : `` Democracy can not be terrorized , '' Prime Minister says . Newspaper received call that bomb was outside Greece 's parliament building . Authorities closed off area before explosive was detonated . Greece 's tomb of the unknown soldier is in front part of building .