Homes in the area were evacuated during the three-hour standoff.
Manchester Police say few details are available but dd confirm that a man, 33, who had been barricaded in the house, died of a self-inflicted gunshot wound.
SWAT could be heard ordering a subject to come to the front door and was heard firing multiple rounds of tear gas in to the house, breaking windows and ordering the suspect out. At one point it appeared multiple shots were fired.
At approximately 6 p.m. an ambulance came on scene, and transported one person from the scene with a gun shot wound and life threatening injuries.
No other information is available at this time.
Jeffrey Hastings contributed to this report.