Houses on Homeland Street were evacuated early Sunday after an armed man barricaded himself in a neighborhood home, threatening to kill himself.

Police were dispatched to 160 Homeland St. about 4:50 a.m. Sunday after the mother of Michael D'Avanzo, 44, reported that her son was threatening to kill himself. D'Avanzo, who owns both rifles and hand guns, was loading one of the weapons when she fled from the residence, which they shared.

The mother believed she heard one gun shot as she left, she told police. D'Avanzo was considered by officers who arrived on the scene to be a barricaded subject, armed and dangerous.

Officers from the Fairfield Emergency Services Unit secured a perimeter around the home, and helped to evacuate nearby residences. They were assisted by the Bridgeport ESU and its utility vehicle, which is able to withstand gun fire.

After several unsuccessful attempts by Fairfield police negotiators to reach Michael D'Avanzo by phone, ESU officers entered the residence and found the man's body in a bedroom, apparently the victim of a self-inflicted gun shot wound.

Detectives are continuing to investigate the incident.