Breaking news out of D.C.:

Update:

A “bomb threat” was phoned in:

Editor’s note: This post has been updated with additional tweets.

Update:

Reports now that the White House briefing room has been evacuated:

Update:

Well, this is a bit bizarre:

There are also reports that the entire West Wing was evacuated:

In any case, everyone evacuated appears to have gotten the all-clear to return:

Update:

Tags: Dirksen