The FBI is investigating Donald Trump's former top counter-terrorism official - who resigned from the role earlier this week - over alleged leaks, sources have told CBS News, the BBC's US partner.
Joe Kent is under investigation in connection with alleged leaks of classified information, with sources telling CBS that the probe began before his departure as US National Counterterrorism Center director.
Announcing his resignation on Tuesday, Kent said he could not support the war in Iran "in good conscience" and that the country "posed no imminent threat" to the US - a claim the White House dismissed.
BBC News has contacted the FBI and Kent for comment regarding the allegation of leaks.
The probe is being handled by the FBI's criminal division and has been under way for some time, one source told CBS.
