The email issue that has dogged Hillary Clinton's campaign for more than a year has flared up again, just over a week before Election Day.
The FBI has announced it's looking into whether there was any classified information on a device belonging to disgraced ex-congressman Anthony Weiner.
The estranged husband of longtime Clinton aide Huma Abedin is the subject of a separate investigation for sending explicit text messages to a teenage girl.
Clinton is urging FBI Director James Comey to release the full details of the investigation.
The FBI said in July that its investigation into Clinton's server was finished.