Breaking news to report out of Maryland where we’re seeing reports of an active shooter at Andrews Air Force Base:

There has been no confirmation of shots fired, however:

According to ABC News, an active shooter drill was taking place when the “real-world shooter was reported”:

The shooter may be a patient:

A shelter in place order is in effect:

We’ll update this post as soon as we learn more.

Update 1. From the Joint Base Andrews official Twitter account confirming that there was a drill ongoing when the real report came in:

First responders are on the scene:

Update 2. Still no report of an actual “active shooter” at the base and Joe Biden flight’s has been delayed as a precaution:

Update 3. It’s looking like someone reported a real shooter when what they saw was the drill taking place:

Update 4. CNN reports “All Clear”: