Ireland 's `` unfriendly step '' will `` not go unanswered , '' a deputy minister says . Ireland says a probe found Russian intelligence services forged passports . Russia denies the allegations and has said it is considering retaliatory measures against Irish officials who have been named in media reports as having played a role in the passport scandal. The ministry press office told CNN it was not aware of the comment and could not elaborate . The investigation was launched after Russian agents were discovered in the United States .
Ireland 's `` unfriendly step '' will `` not go unanswered , '' a deputy minister says . Ireland says a probe found Russian intelligence services forged passports . Russia denies the allegations and has said it is considering retaliatory measures against Irish officials who have been named in media reports as having played a role in the passport scandal. The investigation was launched after Russian agents were discovered in the United States .