The Capitol was evacuated “as a precaution,” police said. There were probably not many people present at the time of the evacuation, as there was no meeting of the Senate or House of Representatives.
Details about the type of aircraft that originally caused the threat are lacking. CNN reporter Mike Valerio does report on Twitter, based on two anonymous sources, that it would be a single-engine device. This cannot be verified.
The building was stormed by Trump supporters early last year and has been heavily secured ever since.