Boston Police officers from District 2 and the Boston Police Entry Team have responded to a Code 99 located at 42 Langdon Street in Roxbury. A Code 99 is defined as a special threat in this particular case involving the possibility of an armed barricaded suspect.This incident is believed to be related to an earlier radio call for shots fired in the area. At this time, it is unclear if the suspect is located inside the residence. It is standard procedure for the Entry Team to respond in these cases to secure the premise. Media Relations has responded to the scene and is located at the corner of George St. and Woodward St. As a safety precaution for our officers, all TV outlets are respectfully asked to refrain from airing any helicopter footage until the incident has been resolved.