Police confirmed to FOX 5 that a call came in around 3:32 p.m. on Thursday for a shooting inside the Anacostia Neighborhood Library located at 1800 block of Good Hope Road.
Once at the scene, officers found a woman who was unconscious and not breathing. Police say she was taken to an area hospital, and later pronounced dead.
During a press conference about the shooting, Metropolitan Police Chief Robert J. Contee III confirmed that the victim was a special police officer for the library.
According to Contee, the shooting happened during an ASP Baton training being conducted inside a meeting room in the library. The training was being conducted by a retired police lieutenant who was contracted by the library's special police to train their officers.
Police say that at the end of the training, the lieutenant fired a shot and struck the special officer. Investigators did not indicate, however, what led up to that shot being fired.
Police say they are continuing to investigate the incident, including why a live weapon was being used in a training environment. As part of the investigation, police say they are questioning the retired police lieutenant who was conducting the training.
This is a developing story. Stay with FOX 5 for updates as they become available.