At about 9:12pm, on Tuesday, July 1, 2008, officers from Area A-1 (Downtown) responded to a radio call to assist the Boston Fire Department. The Fire Department had received a radio call concerning a strong odor of ammonia emanating from an apartment located in the area of 21 Temple Street. On arrival, officers learned that the Fire Department had spoken to the occupant of the apartment. According to Fire officials, the occupant was agitated, angry and refusing to let anybody enter her apartment. The officers on scene were also able to detect the strong odor of ammonia.At this point, the Hazmat Unit was called to the scene. Once on scene, the Hazmat Unit attempted to gain entry into the apartment. Officers were able to partially pry the door open. However, in doing so, officers observed that the door was, in fact, barricaded. As a result, the Boston Police SWAT team was called to the scene in order to gain entry into the location. Once inside, the occupant of the apartment was removed and transported to Mass General Hospital for evaluation purposes. At this time, the name of the occupant is being withheld while the evaluation is ongoing.