The all clear has been given at the home base for Air Force One after a report of an active shooter turned out to be false.
It’s Joint Base Andrews in a Maryland suburb of Washington.
An earlier tweet from the base said there was an incident at the Malcolm Grow Medical Facility and first responders were on the scene.
It instructed everyone to continue to shelter in place, a precaution meant to keep people safe while remaining indoors.
The base was to conduct an “active shooter” drill this morning.
President Barack Obama returned from his trip to Canada last night and is not at the base.