Former FBI Director James Comey was interviewed by US Secret Service agents at their Washington, DC, field office on Friday afternoon, according to law enforcement sources.

CNN aired footage showing Comey leaving his suburban Virginia home en route to the Secret Service's Washington, D.C., field office.

Former FBI director James Comey met with the U.S. Secret Service on Friday, after he was called in to discuss a social media post that Donald Trump's supporters claimed was a threat against the president,