UPDATE: A suspect has been taken into custody. No reports of shots fired. The breaking news below was provided by an eyewitness at the scene. Updated reports suggest no word of shots fired.
There is a live shooting situation unfolding on the campus of American University. Students have been sent a text message instructing them to get to a safe location. There has been no word of any injuries at this time. Stay tuned to Guardian Express to bring you details as this situation unfolds.