Administration officials had said the post — a picture of seashells forming the numbers “86 47” — amounted to an assassination threat by the former F.B.I. director.

Former FBI Director James Comey was escorted by US Secret Service agents to their Washington Field Office on Friday afternoon for an interview, according to law enforcement sources.

Former FBI Director James Comey was set to be interviewed by the Secret Service on Friday about a social media post that Republicans suggested was a call for violence against President Donald Trump.