FBI agents investigating Hillary Clinton’s private email server knew in early October that data recovered in a sexting probe of Anthony Weiner might relate to the case — but waited until last Thursday to tell the FBI director, the Washington Post reported Sunday.

It's unclear why investigators didn't tell Director James Comey sooner but they knew about the messages since soon after New York FBI agents seized a computer related to their investigation of Weiner — estranged husband of top Clinton aide Huma Abedin — who allegedly exchanged explicit messages with a 15-year-old girl, the Post reported, citing unnamed sources.

Federal law enforcement officials believe the computer seized was used by both Weiner and Abedin. One official told the Post that the total number of emails recovered in the investigation is close to 650,000. Bu that reflects many emails that are not related to the Clinton investigation.

It's also unclear what FBI agents were doing in the weeks since they knew about the possibly related emails — including whether they were trying to learn more about the emails before notifying Comey, the Post reported.



The Post reported Abedin has told people she doesn't know how her emails — it's unclear if Clinton sent any of them — could have ended up on a device she viewed as belonging to her husband.