U.S. Democratic presidential candidate Hillary Clinton says she is confident a new FBI investigation into her e-mails will not change its original conclusion not to prosecute her.
"The American people deserve to get the full and complete facts immediately," Clinton said on October 28.
She urged the FBI to "explain this issue in question, whatever it is, without any delay."
"Let's get it out," she said.
Federal investigators said they will look into new e-mails that have surfaced related to Clinton's use of a private e-mail server.
The announcement, made by FBI Director James Comey in a letter to Congress, injected major new uncertainty into the U.S. presidential campaign, with less than two weeks before Election Day.
The FBI has already investigated whether Clinton's use of a private server while she was secretary of state might have resulted in the mishandling of classified information.
Comey announced in July that investigators found nothing illegal, but chided Clinton for bad judgement. Clinton apologized for her actions.
The news that the FBI was investigating additional e-mails could potentially roil the race between Clinton and her Republican opponent, Donald Trump.
Trump called the new development part of "the biggest political scandal since Watergate" -- a reference to the 1970s case that forced the resignation of Republican President Richard Nixon.
Speaking to supporters at a rally in New Hampshire, Trump used Comey's new letter to attack Clinton.
"We must not let her take her criminal scheme into the Oval Office," said Trump who faces a string of accusations of sexual misconduct -- which he denies.
Most major opinion polls show Clinton with a substantial lead over Trump.