FBI Director James Comey says that agents have "reviewed all of the communications that were to or from Hillary Clinton" that were part of newly discovered emails.
Comey sent a letter to Congress Sunday informing them that the FBI has "not changed our conclusions" from earlier this year that she should not face charges.
The emails were found on the computer of Anthony Weiner, the estranged husband of top Clinton aide Huma Abedin.
Comey's brief letter did not indicate how many emails were reviewed or what sort of material was found in Abedin's emails.
Comey's initial letter last month revealing that agents were reviewing the newly discovered email breathed new life into Donald Trump's campaign. Trump has repeatedly warned that a cloud of scandal would follow Clinton to the White House.