Huma Abedin and Hillary Clinton on the campaign’s plane on Friday.
Huma Abedin and Hillary Clinton on the campaign’s plane on Friday.

WASHINGTON (Diya TV) — Federal law enforcement officials said Friday that new emails uncovered in the closed investigation into Hillary Clinton’s use of a private email server were discovered after the F.B.I. seized electronic devices belonging to Huma Abedin, a top aide to Mrs. Clinton, and her husband, Anthony D. Weiner.

The FBI is still investigating illicit text messages that Weiner allegedly sent to a 15-year-old girl in North Carolina, and told Congress Friday that it had uncovered new emails related to the Clinton case — one federal official said they numbered in the thousands — potentially reigniting an issue that has weighed on the presidential campaign. The discovery could serve as possible ammunition to the campaign of Donald Trump with less than two weeks remaining until next month’s general election.

In a letter to Congress, the FBI director, James B. Comey, said that emails had surfaced in an unrelated case, and that they “appear to be pertinent to the investigation.”

Comey said the FBI was taking steps to “determine whether they contain classified information, as well as to assess their importance to our investigation.” He said he was unsure of how long it would take to review the emails, and whether or not new information would be significant.

Trump has fallen behind Clinton in the polls in several key states, however, polls have been tightening amid the daily release of hacked Clinton campaign emails published by WikiLeaks.

Regardless, Trump seized the opportunity Friday while speaking to a crowd in New Hampshire. “Hillary Clinton’s corruption is on a scale we have never seen before. We must not let her take her criminal scheme into the Oval Office,” he said to chants of “lock her up.”

After deriding the agency as inept and corrupt, Trump praised the efforts of the FBI for the most recent discovery.

“I have great respect for the fact that the F.B.I. and the D.O.J. are now willing to have the courage to right the horrible mistake that they made,” Mr. Trump said, referring also to the Department of Justice. “This was a grave miscarriage of justice that the American people fully understand. It is everybody’s hope that it is about to be corrected.”

The Clinton campaign has called on Comey to provide further information beyond what was included in his letter.

“Director Comey’s letter refers to emails that have come to light in an unrelated case, but we have no idea what those emails are and the director himself notes they may not even be significant,” said John D. Podesta, chairman of Clinton’s campaign.

He added: “It is extraordinary that we would see something like this just 11 days out from a presidential election.”

The Republican National Committee cheered the new attention on Mrs. Clinton’s emails as a potential turning point in the race.

“The F.B.I.’s decision to reopen their criminal investigation into Hillary Clinton’s secret email server just 11 days before the election shows how serious this discovery must be,” Reince Priebus, the Republican committee chairman, said in a statement. “This stunning development raises serious questions about what records may not have been turned over and why, and whether they show intent to violate the law.”