After recommending earlier this year that the Department of Justice not press charges against the former secretary of state, Comey said in a letter to eight congressional committee chairmen that investigators are examining newly discovered emails that "appear to be pertinent" to the email probe.
"In connection with an unrelated case, the FBI has learned of the existence of emails that appear pertinent to the investigation," Comey wrote the chairmen. "I am writing to inform you that the investigative team briefed me on this yesterday, and I agreed that the FBI should take appropriate investigative steps designed to allow investigators to review these emails to determine whether they contain classified information, as well as to assess their importance to our investigation."
Comey said he was not sure how long the additional review would take and said the FBI "cannot yet assess whether or not this material may be significant."
The Department of Justice, which followed Comey's recommendation not to charge Clinton, declined to comment Friday. Law enforcement sources say the newly discovered emails are not related to WikiLeaks or the Clinton Foundation.According to a FoxNews report the new emails came to surface during an investigation relating to former Congressman Anthony Weiner's sexting scandal. Weiner's estranged wife, Huma Abedin, is a top aide to Hillary Clinton.