Police say, at around 8:35 p.m., they responded to weapons call at a residence on Carleton Street in Dartmouth, N.S.
According to police, the suspect, a 59-year-old man, had barricaded himself in the residence, which led officers to set up containment on the scene.
“While attempting to arrest the man, he confronted the officers with a weapon and an officer discharged a service weapon,” said Halifax Regional Police, in a news release.
Police say the man died on the scene.
The incident has been referred to SiRT, the Serious Incident Response Team, a police watchdog organization that investigates matters that involve the police when injury or death occurs.